All Calculators

Mortgage

Calculate your monthly mortgage payment, total interest paid, and full amortization breakdown.

Dice Roll

Calculate the minimum, maximum, and expected average total for any dice combination.

Loan Payment

Calculate monthly payments, total interest, and total cost for any personal or auto loan.

Compound Interest

See how your savings grow over time with the power of compounding interest.

Simple Interest

Calculate simple interest, total repayment, and interest rate for any loan or savings account.

CC Payoff

Find out how long it takes to pay off your credit card and how much interest you'll pay.

Percentage

Calculate percentages, percentage change, and what percentage one number is of another.

Discount

Calculate the final price after a percentage discount, the amount saved, and the discount percentage.

Tip

Calculate your tip amount, total bill, and split the check any number of ways.

Age

Calculate your exact age in years, months, weeks, and days from your date of birth.

BMI

Calculate your Body Mass Index (BMI) and see where you fall on the standard BMI scale.

Calories

Calculate your daily calorie needs (TDEE) based on your age, weight, height, sex, and activity level.

Water Intake

Calculate your recommended daily water intake based on your weight, activity level, and climate.

Inflation

Calculate the real purchasing power of money over time using a custom inflation rate — see what a past or future dollar amount is worth today.

Salary to Hourly

Convert any annual, monthly, biweekly, or weekly salary into an equivalent hourly wage — and vice versa.

Loan Affordability

Find the maximum loan amount you can afford based on your monthly income, debts, interest rate, and loan term.

Savings Goal

Find out how much you need to save each month to reach any financial goal by a specific deadline, with or without interest.

Date Difference

Find the exact number of days, weeks, months, and years between any two dates — including business days.

Time in X Minutes

Find what time it will be in any number of minutes from now. Add or subtract minutes and hours from any start time, with a reference table for every offset up to 120 minutes.

Time X Minutes Ago

Enter any current time and subtract any number of minutes or hours to find out exactly what time it was in the past.

Time Duration

Calculate the number of days and weeks between two dates.

Business Days

Calculate the number of business days between two dates.

Due Date

Estimate your pregnancy due date based on your last period and cycle length.

Loan Payment

Calculate monthly payments, total interest, and payoff time for any standard loan.

Minutes to Hours

Convert any number of minutes to hours and minutes — handles remainders automatically. Includes common time conversions. Free instant tool.

Hours to Minutes

Convert hours, minutes, and seconds into total minutes, seconds, or decimal hours — instantly.

Percent Increase

Calculate the percentage increase between two numbers instantly.

Percent Decrease

Calculate the percentage decrease between two values instantly.

Hourly to Salary

Convert hourly wage into yearly salary instantly.

Days Between Dates

Find the number of days between two dates, plus weeks and total months estimate.

Age Difference

Calculate the age difference between two birthdays in years, months, and days.

Time Until Date

Find how much time is left until a future date and time.

Days Until

Find how many days are left until a future date.

Salary After Tax

Estimate take home pay after taxes using a simple effective tax rate.

Work Hours

Calculate how many hours you worked in a day after accounting for breaks.

Time Between Times

Find the time difference between two clock times, with optional overnight handling.

Percent Change

Calculate the percent change between two values and see increase or decrease.

Hours Between Dates

Calculate the total number of hours between two dates and times.

Weeks Between Dates

Calculate the number of weeks between two dates.

Percentage Difference

Calculate the percentage difference between two numbers using the standard percent difference formula.

Margin Calculator

Calculate profit margin based on revenue and cost.

Markup Calculator

Calculate markup percentage based on cost and selling price.

Commission

Calculate your sales commission and total compensation based on a percentage of sales.

Overtime Pay

Calculate your total paycheck including standard wages and overtime pay.

Percent Off

Find out exactly how much you'll pay and save after applying a percentage discount.

Profit Margin

Calculate your gross profit margin and markup based on cost and revenue.

Percent Difference Calculator

Find the percentage difference between two distinct values.

APR Calculator

Estimate the Annual Percentage Rate (APR) of a loan including interest and fees.

Return on Investment (ROI) Calculator

Calculate the profitability of an investment by determining its ROI.

CAGR Calculator

Calculate the Compound Annual Growth Rate (CAGR) of an investment over time.

Sales Tax Calculator

Quickly determine the tax amount and total price of a purchase.

Break-Even Calculator

Find out exactly how many units you need to sell to cover your business costs.

Net Income Calculator

Calculate your business's bottom-line net income and profit margin.

Credit Utilization Calculator

Calculate the percentage of available credit you are currently using.

Average Calculator

Calculate the average (mean), sum, and count of two or three numbers.

Ratio Calculator

Simplify ratios and convert them into decimals and percentages.

Percentage of a Number Calculator

Easily find out what a specific percentage of a number is.

Decimal to Percent Calculator

Convert any decimal number into a percentage instantly.

Percent to Decimal Calculator

Convert a percentage into a decimal number instantly.

Time and a Half Calculator

Calculate your overtime pay using the standard time and a half rate.

Minutes to Decimal Hours Calculator

Convert time measured in minutes into a decimal hour format for payroll and billing.

Decimal Hours to Minutes Calculator

Convert a decimal hour format back into standard hours and total minutes.

Weighted Average Calculator

Calculate the weighted average of two values based on their relative weights.

Fraction to Decimal Calculator

Quickly convert any fraction into a decimal number and percentage.

Decimal to Fraction Calculator

Convert a decimal number back into a precise or approximated fraction.

Compound Growth Calculator

Calculate how your money will grow over time with compound interest.

Discount Percentage Calculator

Find out exactly what percentage discount you received based on the original and sale prices.

Hours Worked Calculator

Calculate your total hours worked per week, month, or over a specific duration.

Pay Per Hour Calculator

Determine your exact hourly wage based on total earnings and hours worked.

Fraction Calculator

Simplify any fraction and calculate its decimal and percentage equivalents.

Ratio to Percentage Calculator

Convert any mathematical ratio into a clean percentage.

Percentage Change Calculator

Calculate the percentage increase or decrease between an old value and a new value.

Weighted Grade Calculator

Calculate your final class grade based on assignments and exam weights.

Tip & Split Bill Calculator

Calculate the tip amount and easily split the final restaurant bill among friends.

Salary Per Month Calculator

Break down your annual salary into monthly, weekly, and daily earnings.

Work Hours Per Year Calculator

Calculate your total working hours over a full year.

kg to lbs

Convert kilograms to pounds instantly.

lbs to kg

Convert pounds to kilograms quickly and accurately.

Miles to km

Convert miles to kilometers with precision.

Inches to cm

Convert inches to centimeters instantly.

Hours to Seconds

Convert hours to seconds instantly.

Christmas Countdown

Calculate how many days are left until Christmas.

Halloween Countdown

Calculate how many days remain until Halloween.

New Year Countdown

Calculate how many days remain until the New Year.

Thanksgiving Countdown

Calculate how many days remain until Thanksgiving.

Summer Countdown

Calculate how many days remain until summer begins.

Winter Countdown

Calculate how many days remain until winter begins.

Spring Countdown

Calculate how many days remain until spring begins.

Fall Countdown

Calculate how many days remain until fall begins.

°C to °F

Convert Celsius to Fahrenheit instantly.

°F to °C

Convert Fahrenheit to Celsius instantly.

°C to K

Convert Celsius to Kelvin for science and engineering.

K to °C

Convert Kelvin to Celsius for everyday temperature understanding.

ft to m

Convert feet to meters quickly and accurately.

m to ft

Convert meters to feet quickly and accurately.

yd to m

Convert yards to meters instantly.

g to oz

Convert grams to ounces for cooking, nutrition, and shipping.

oz to g

Convert ounces to grams for cooking, nutrition, and shipping.

Min to Sec

Convert minutes to seconds instantly.

Sec to Min

Convert seconds to minutes instantly.

Days to Hours

Convert days to hours instantly.

mph to km/h

Convert miles per hour to kilometers per hour instantly.

km/h to mph

Convert kilometers per hour to miles per hour instantly.

L to gal

Convert liters to US gallons instantly.

gal to L

Convert US gallons to liters instantly.

cm to in

Convert centimeters to inches instantly.

m to yd

Convert meters to yards instantly.

Salary to Weekly

Convert your annual salary to a weekly paycheck amount.

Salary to Daily

Convert your annual salary to a daily rate.

Weekly to Salary

Convert your weekly pay to an equivalent annual salary.

Daily to Salary

Convert your daily pay rate to an equivalent annual salary.

Percent Error

Calculate the percent error between an actual and expected value.

Percent Growth

Calculate the percentage growth or decline between two values.

BMR

Calculate your Basal Metabolic Rate using the Mifflin-St Jeor formula.

TDEE

Calculate your Total Daily Energy Expenditure based on BMR and activity level.

Protein Intake

Calculate your recommended daily protein intake based on weight and activity level.

Water Intake

Calculate your recommended daily water intake based on body weight.

Body Fat %

Estimate your body fat percentage using the US Navy circumference method.

Ideal Weight

Estimate your ideal body weight based on height using the Devine formula.

Macros

Calculate your daily protein, carbs, and fat targets based on your body stats, activity level, and goal.

Calorie Deficit

Find out how many calories to eat per day to hit your target weight loss rate.

Lean Body Mass

Calculate your lean body mass and fat mass from your weight and body fat percentage.

WHtR

Calculate your waist-to-height ratio (WHtR) — a simple and reliable indicator of central adiposity and cardiometabolic risk.

Target Heart Rate

Calculate your target heart rate zone and maximum heart rate for any exercise intensity.

Debt Payoff

Find out how long it will take to pay off a debt and how much interest you'll pay in total.

Pace

Calculate your running or walking pace per kilometre and per mile from a distance and time.

Running Speed

Calculate your average running or walking speed in km/h and mph from distance and time.

Car Loan

Calculate your monthly car loan payment, total interest, and total cost.

Down Payment

Calculate the down payment amount, loan amount needed, and LTV ratio for any purchase price.

Loan Interest

Calculate total interest paid and total cost for any fixed-rate loan.

Savings Rate

Calculate the percentage of your income you are saving each month.

1RM Calculator

Estimate your one-rep max (1RM) for any lift from a weight and rep count.

Body Surface Area

Calculate your body surface area (BSA) using the Mosteller formula.

Ideal Body Fat

Find the recommended body fat percentage range for your sex and fitness category.

Running Cadence

Calculate your running cadence (steps per minute) and see how it compares to the optimal range.

Pace Per Mile

Calculate your pace per mile and per kilometre from a distance in miles and total time.

Unit Price

Compare the unit price of two products to find the better value.

Rent vs Buy

Compare the total 5-year cost of renting versus buying a home.

Daily Compound Interest

Calculate investment growth with daily compounding and optional monthly contributions.

Walking Calories

Estimate calories burned walking based on your weight, distance, and pace.

Pace Per KM

Calculate your running or walking pace per kilometre from distance and time.

Rent Affordability

Find out how much rent you can afford based on your income and expenses.

Closing Costs

Estimate the closing costs when buying a home based on purchase price and loan amount.

Interest-Only Loan

Calculate the monthly interest-only payment on a loan and compare it to a fully amortising payment.

Amortization

Calculate your monthly payment and full amortization breakdown — principal, interest, and balance over time.

Mile Time

Calculate your mile time from a known pace or convert between pace and speed.

HR Zones

Calculate all five heart rate training zones from your age and resting heart rate.

Cycling Calories

Estimate calories burned cycling based on your weight, distance, and speed.

Water Intake (oz)

Calculate your recommended daily water intake in fluid ounces based on weight and activity level.

Date Subtract

Subtract a number of days, weeks, or months from a date to find an earlier date.

Hours to Days

Convert a number of hours into days, weeks, and minutes.

Median

Find the median of up to 8 numbers.

Mode

Find the most frequently occurring value in a set of up to 8 numbers.

Range

Calculate the statistical range (max minus min) for up to 8 numbers.

Std Deviation

Calculate population and sample standard deviation for up to 8 values.

Months Between

Calculate the number of months between two dates using year and month inputs.

Years Between

Calculate the number of complete years and remaining months between two dates.

Date Add

Add years, months, and days to a starting date to find the resulting date.

Working Hours

Calculate total working hours over a period based on days per week, hours per day, and vacation.

Sleep

Find the best bedtime or wake time based on 90-minute sleep cycles.

Countdown

Calculate days, weeks, and months remaining until a future event.

Extra Payment

See how much interest and time you save by making extra monthly mortgage payments.

Early Payoff

Calculate how much you save in interest by paying off a loan early with a lump sum.

Monthly Savings

Calculate how much you need to save each month to reach a savings goal.

Future Value

Calculate the future value of an investment with optional regular contributions.

Present Value

Calculate what a future sum of money is worth in today's dollars.

GPA

Calculate your weighted GPA across up to 6 courses using letter grades and credit hours.

Grade Average

Calculate your weighted average percentage grade across up to 6 assignments or exams.

Fuel Cost

Enter distance, MPG, and gas price to see your exact fuel cost. Works for any road trip or daily commute. Free instant results.

Road Trip Cost

Estimate the total cost of a road trip including fuel, food, lodging, and activities.

Price / Sq Ft

Calculate the price per square foot for a property and compare two properties side by side.

Median of Five Numbers Calculator

Find the median (middle value) of exactly five numbers.

Median of Ten Numbers Calculator

Find the median of exactly ten numbers.

Mode of Numbers Calculator

Find the mode (most frequently occurring value) from up to six numbers.

Range of Numbers Calculator

Calculate the range (difference between the largest and smallest values) of up to six numbers.

Standard Deviation Calculator

Calculate the population standard deviation and variance for up to six numbers.

Random Number Range Calculator

Find out how many integers exist within a given range and the total count of possible values.

Password Strength by Length Calculator

Calculate the number of possible password combinations based on length and character set size.

Countdown Hours Calculator

Convert a countdown in days and hours into total hours, minutes, and seconds.

Sleep Cycle Calculator

Calculate how many complete 90-minute sleep cycles fit into your available sleep time.

Wake-Up Time Calculator

Find the best wake-up times based on your bedtime and 90-minute sleep cycles.

Bedtime Calculator

Find the ideal bedtime to wake up refreshed at your target wake-up time.

Study Hours Calculator

Calculate how many hours per day you need to study to meet your total study goal before a deadline.

Reading Time Calculator

Estimate how long it will take to read a book or article based on page count and reading speed.

Daily Screen Time Calculator

Calculate your total daily screen time from multiple devices and see your weekly and yearly totals.

Interest-Only Mortgage Calculator — See Your Real Monthly Payment

Calculate interest-only mortgage payments and compare to principal + interest. See exactly what you pay and when. Free tool.

Extra Mortgage Principal Payment Calculator

See how much interest you save and how many years you cut from your mortgage by making extra principal payments.

Loan Total Interest Calculator

Calculate the total interest you will pay over the life of a loan.

Remaining Loan Balance Calculator

Calculate how much you still owe on a loan after a number of payments.

Car Loan Affordability Calculator

Find the maximum car price you can afford based on your monthly budget, interest rate, and loan term.

Investment Doubling Time Calculator

Calculate how long it will take for an investment to double using the Rule of 72 and exact compound interest.

Savings Interest Calculator

Calculate the interest earned on your savings over time with compound interest.

Monthly Budget Calculator

Calculate your monthly surplus or deficit by entering your income and key expense categories.

Net Worth Calculator

Calculate your net worth by subtracting your total liabilities from your total assets.

Debt-to-Income Ratio Calculator

Calculate your debt-to-income (DTI) ratio — a key metric lenders use to evaluate loan applications.

Hydration Reminder Calculator

Calculate how often you should drink water throughout the day to meet your daily hydration goal.

Daily Water Intake by Body Weight Calculator

Calculate your recommended daily water intake based on your body weight and activity level.

Calories Burned Running Calculator — By Distance, Weight & Pace

See exactly how many calories you burned running based on your distance, weight, and pace. Instant results with a full breakdown. Free calculator.

Target Weight Loss Calculator

Calculate how long it will take to reach your target weight based on your daily calorie deficit.

m to in

Convert meters to inches instantly.

in to m

Convert inches to meters instantly.

ft to in

Convert feet to inches instantly.

in to ft

Convert inches to feet and inches — handles remainders automatically. Includes a full 1–120 inch conversion chart. Free, instant.

yd to ft

Convert yards to feet instantly.

ft to yd

Convert feet to yards instantly.

mi to ft

Convert miles to feet instantly.

ft to mi

Enter any number of feet and get the exact miles — including decimals. Common conversions and running distances included. Free.

kg to g

Convert kilograms to grams instantly.

g to kg

Convert grams to kilograms instantly.

lb to oz

Convert any weight in pounds to ounces instantly. Includes a full conversion chart from 0.25 lb to 20 lb. Free tool.

oz to lb

Convert ounces to pounds instantly.

mL to L

Convert milliliters to liters instantly.

L to mL

Convert liters to milliliters instantly.

tbsp to tsp

Convert tablespoons to teaspoons instantly.

tsp to tbsp

Convert teaspoons to tablespoons instantly — perfect for scaling recipes up or down. Includes common cooking conversions. Free.

cups to mL

Convert US cups to milliliters instantly.

mL to cups

Convert milliliters to US cups instantly.

days to min

Convert days to minutes instantly.

wk to days

Convert weeks to days instantly.

mo to days

Convert months to days using a 30-day average month.

days to wk

Convert days to weeks instantly.

days to mo

Convert days to months using an average month length.

sec to hr

Convert seconds to hours instantly.

min to days

Convert minutes to days instantly.

days to sec

Convert days to seconds instantly.

km to m

Convert kilometers to meters instantly.

m to km

Convert meters to kilometers instantly.

mm to cm

Convert millimeters to centimeters instantly.

cm to mm

Convert centimeters to millimeters instantly.

m² to ft²

Convert any square meter value to square feet instantly. Includes common conversion chart and real estate examples. Free tool.

ft² to m²

Convert square feet to square meters instantly.

ac to ft²

Convert acres to square feet instantly.

ft² to ac

Convert square feet to acres instantly.

bar to psi

Convert pressure in bar to pounds per square inch (PSI) instantly.

psi to bar

Convert pressure in PSI to bar instantly.

K to °F

Convert temperatures in Kelvin to Fahrenheit instantly.

°F to K

Convert temperatures in Fahrenheit to Kelvin instantly.

m to cm

Convert meters to centimeters instantly.

cm to m

Convert centimeters to meters instantly.

m to mm

Convert meters to millimeters instantly.

mm to m

Convert millimeters to meters instantly.

km to ft

Convert kilometers to feet instantly.

ft to km

Convert feet to kilometers instantly.

m² to acres

Convert square meters to acres instantly.

acres to m²

Convert acres to square meters instantly.

L to cups

Convert liters to US cups instantly.

cups to L

Convert US cups to liters instantly.

lbs to kg

Convert pounds to kilograms instantly.

kg to lbs

Convert kilograms to pounds instantly.

m to ft

Convert meters to feet instantly.

ft to m

Convert feet to meters instantly.

m to yd

Convert meters to yards instantly.

yd to m

Convert yards to meters instantly.

m to mi

Convert meters to miles instantly. Includes common athletic distances — 1500m, 5K, 10K, marathon in miles. Free converter.

mi to m

Convert miles to meters instantly.

kg to g

Convert kilograms to grams instantly.

g to kg

Convert grams to kilograms instantly.

kg to lbs

Convert kilograms to pounds instantly.

lbs to kg

Convert pounds to kilograms instantly.

kg to oz

Convert kilograms to ounces instantly.

oz to kg

Convert ounces to kilograms instantly.

L to mL

Convert liters to milliliters instantly.

mL to L

Convert milliliters to liters instantly.

L to tbsp

Convert liters to US tablespoons instantly.

tbsp to L

Convert US tablespoons to liters instantly.

L to tsp

Convert liters to US teaspoons instantly.

tsp to L

Convert US teaspoons to liters instantly.

m² to ha

Convert square meters to hectares instantly.

ha to m²

Convert hectares to square meters instantly.

Stock Profit

Calculate your profit or loss from a stock trade.

Emergency Fund

Calculate how large your emergency fund should be.

Rule of 72

Estimate how long it takes for an investment to double.

Dividend Yield

Calculate the dividend yield of a stock.

Cost Per Use

Find out how much an item actually costs per use.

Child Savings

Estimate how much you'll save for your child by a target age.

Cost Per Mile

Calculate how much it costs to drive one mile.

Effective Hourly Rate

Find your effective hourly rate from a project fee and hours worked.

VO2 Max

Estimate your VO2 max from your resting heart rate.

Swimming Calories

Estimate calories burned during a swimming session.

Steps to Calories

Convert your daily step count to calories burned.

Steps to Miles

Convert your step count to miles walked.

Sleep Debt

Calculate how much sleep debt you've accumulated.

Push-Up Calories

Estimate calories burned doing push-ups.

BMI Prime

Calculate your BMI Prime — a normalized BMI ratio.

Gas Mileage

Calculate your car's fuel efficiency in miles per gallon.

Driving Carbon Footprint

Estimate the CO₂ emissions from your driving.

Dog Age

Convert your dog's age to the equivalent human age.

Cat Age

Convert your cat's age to the equivalent human age.

Reading Pages

Calculate how many days it will take to finish a book.

Weekly Screen Time

Convert your daily screen time to a weekly total.

Typing Speed

Calculate your typing speed in words per minute.

W to kW

Convert watts to kilowatts instantly.

kW to W

Convert kilowatts to watts instantly.

mph to fps

Convert miles per hour to feet per second.

fps to mph

Convert feet per second to miles per hour.

st to lbs

Convert stones to pounds instantly.

lbs to st

Convert pounds to stones instantly.

Crypto Profit

Calculate your profit or loss on any cryptocurrency investment.

BTC Mining Profit

Calculate whether Bitcoin mining is profitable for your setup.

ETH Staking

Calculate your Ethereum staking rewards over time.

Staking Rewards

Calculate staking rewards for any proof-of-stake cryptocurrency.

Crypto DCA

Calculate the outcome of dollar-cost averaging into cryptocurrency.

Crypto ROI

Calculate the return on investment (ROI) for any crypto trade.

Crypto Compound

Project crypto portfolio growth with compound interest or staking reinvestment.

Market Cap

Calculate a cryptocurrency's market cap or target price from a given market cap.

Crypto Converter

Convert any amount of cryptocurrency to its USD value.

BTC Halving Profit

Project Bitcoin profit based on historical post-halving price patterns.

Crypto Portfolio

Calculate the total value of a multi-coin crypto portfolio.

Crypto Tax

Estimate capital gains tax owed on your cryptocurrency profits.

Satoshi to BTC

Convert satoshis to Bitcoin (and USD) instantly.

BTC to USD

Convert Bitcoin to US dollars instantly.

Liquidation Price

Calculate the liquidation price for a leveraged crypto position.

Solar Savings

Estimate how much money solar panels could save you on electricity bills.

Freelance Rate

Calculate the minimum hourly rate you need to charge as a freelancer.

Pool Volume

Calculate the water volume of a rectangular swimming pool in gallons and liters.

Inflation vs Savings

See how inflation erodes the real value of your savings over time.

Pet Cost

Estimate the total annual cost of owning a pet.

QR Generator

Generate a QR code instantly from any URL or text.

Roman Numerals

Convert any number (1–3999) to Roman numerals, or translate a Roman numeral back to a number — instantly.

Aspect Ratio

Calculate the aspect ratio of any width and height. Enter a target width to get the scaled height — perfect for video, images, and screen design.

EV vs Gas

Compare the annual cost of driving an electric vehicle vs a gas car. Enter your miles, gas price, and electricity rate to see your real yearly savings.

Electricity Cost

Calculate exactly how much any device costs to run. Enter wattage, daily hours, and your electricity rate to see daily, monthly, and annual costs.

Currency Converter

Convert between major world currencies using approximate static exchange rates.

Reading Level

Calculate the Flesch-Kincaid grade level and reading ease score for any text.

LTV Calculator

Calculate your loan-to-value ratio, equity percentage, and whether PMI may be required.

Pregnancy Weeks

Find out how many weeks pregnant you are and when your baby is due.

BAC Calculator

Estimate your blood alcohol content (BAC) using the Widmark formula.

Grade Calculator

Find out what grade you need on your final exam to reach your target class grade.

Words to Pages

Convert a word count into an estimated page count for any font, size, and line spacing — plus the words needed to hit a page target.

Reading Speed

Measure your reading speed in words per minute, then estimate how long any text will take you to read.

Cumulative GPA

Combine up to four semesters of credits and GPAs into one cumulative GPA, and find the GPA you need next term to hit a target.

Concrete Calculator

Calculate how much concrete you need for a slab in cubic yards and bags.

Wind Chill

Calculate the wind chill 'feels like' temperature using the official NWS formula.

Heat Index

Calculate the 'feels like' temperature using the official NWS heat index formula.

Dog Pregnancy

Estimate your dog's due date and pregnancy stage based on mating date.

Mulch Calculator

Calculate how many cubic yards of mulch you need and how much it will cost.

Shower Cost

Calculate how much your daily shower costs in water and energy per year.

Pool Volume

Calculate how many gallons your swimming pool holds based on shape and dimensions.

Paint Calculator

Calculate how many gallons of paint you need to cover a room.

Gravel Calculator

Calculate cubic yards and tons of gravel, sand, topsoil, or mulch needed for any area.

Fence Calculator

Estimate fence posts, panels, rails, and material cost for any fencing project.

Flooring Calculator

Calculate how much flooring you need including waste allowance and total cost.

Wallpaper Calculator

Calculate how many rolls of wallpaper you need for any room.

Ovulation Calculator

Estimate your ovulation date, fertile window, and days until next ovulation.

Exact Age Calculator

Calculate your exact age in years, months, days, weeks, and total days lived.

Army Body Fat

Calculate body fat percentage using the official US Army circumference method.

Caffeine Calculator

Calculate your total caffeine intake and see how it compares to safe daily limits.

Snow Water Equivalent

Convert snowfall depth to liquid water equivalent in inches and gallons per acre.

AI Content Cost

Estimate the API cost of generating articles with GPT-4o, Claude, Gemini, or GPT-3.5.

Solar Payback

Calculate your solar panel payback period, 25-year savings, and ROI.

Carbon Footprint

Estimate your annual personal carbon footprint in tons of CO₂ across key lifestyle categories.

Side Hustle Income

Calculate your net annual and monthly income from a side hustle after expenses and taxes.

Inflation Impact

See how inflation erodes purchasing power and what your money will really be worth.

Retirement

Calculate how much your retirement savings will grow and your monthly income in retirement.

Net Salary

Calculate your take-home pay after federal tax, state tax, Social Security, Medicare, and other deductions.

Steps to km

Convert steps to kilometers (and miles) based on your height, and estimate calories burned.

Water Intake

Calculate how much water you should drink per day based on your weight, activity level, and climate.

TDEE by Goal

Calculate your Total Daily Energy Expenditure and target calories for weight loss, maintenance, or muscle gain.

BMI by Age

Calculate your BMI with age-adjusted interpretation — because healthy weight ranges shift slightly as you get older.

Credit Card Interest

See exactly how much interest you'll pay and how long it will take to pay off your credit card balance.

Dog Age

Convert your dog's age to the human equivalent using modern science-based conversion rates by size.

Tip by Service

Calculate the right tip for any service — restaurant, bar, hotel, taxi, salon, delivery, and more.

Period Due Date

Calculate your next period date, ovulation window, and days until your next period.

Ovulation Window

Find your fertile window, peak ovulation day, and next period date from your last period start date.

Luteal Phase

Calculate your luteal phase length and find out if it falls within the normal range of 11–17 days.

Perimenopause Age

Estimate your likelihood of perimenopause based on age, family history, and recent cycle changes.

PMS Severity

Rate 10 common PMS symptoms to get a total severity score and find out if your symptoms may be in the PMDD range.

Roof Replacement Cost

Estimate the cost of replacing your roof based on size, material, and pitch.

Gutter Installation Cost

Estimate gutter installation cost based on linear footage, material, and style.

HVAC Replacement Cost

Estimate the cost of replacing a central HVAC system based on home size and system type.

Plumbing Cost

Estimate plumbing repair or installation costs based on job type and complexity.

Driveway Cost

Estimate driveway installation or replacement cost based on size and material.

Kitchen Remodel Cost

Estimate kitchen remodel costs based on kitchen size and remodel scope.

Bathroom Remodel Cost

Estimate bathroom renovation costs based on bathroom size and remodel scope.

Home Addition Cost

Estimate the cost of adding square footage to your home based on size and addition type.

Job Offer Comparison

Compare two job offers side by side — salary, benefits, commute costs, and more — to see which is worth more in real terms.

WFH Savings

Calculate how much money you save working from home vs going into the office — commute, food, clothing, and more.

Salary Increase

Calculate the dollar value of a raise or promotion — and see how it affects your monthly and hourly take-home.

Commute Cost

Calculate the true annual cost of your daily commute — fuel, time, wear and tear, and parking.

Career Change Cost

Calculate the financial impact of a career change — including retraining costs, salary gap, and break-even timeline.

Irregular Cycle

Estimate your average cycle length and variation from up to 6 recent cycles — helpful for spotting patterns over time.

Cycle Phase

Find out which phase of your menstrual cycle you are likely in today based on your last period date and average cycle length.

Missed Period

Calculate how many days late your period is based on your last period date and average cycle length.

Fertile Days

Estimate your fertile window based on your last period date and cycle length — for informational purposes only.

Cycle Age

Calculate how many menstrual cycles you have had since your first period — a unique way to understand your cycle history.

Moving Cost

Estimate the cost of moving based on distance, home size, and whether you hire movers or DIY.

Landscaping Cost

Estimate landscaping project costs based on yard size and project type.

Window Replacement Cost

Estimate window replacement costs based on number of windows, size, and material.

Deck Cost

Estimate the cost of building a new deck based on size and material choice.

Insulation Cost

Estimate insulation installation costs based on area and insulation type.

Water Heater Cost

Estimate water heater replacement costs based on type, size, and installation complexity.

Fence Repair Cost

Estimate fence repair costs based on fence type, linear footage, and repair scope.

Home Office Cost

Estimate the cost of setting up a home office based on room size and setup level.

Biweekly Mortgage

See how much interest and time you save by switching from monthly to biweekly mortgage payments.

Lease vs Buy

Compare the true cost of leasing versus financing the same car over the lease term.

401k Match

See what your employer's 401(k) match is worth per year — and what it grows into by retirement.

Minimum Payment Trap

See how long paying only the minimum keeps you in debt — and what the minimum payment trap really costs.

Refinance Break-Even

Find how many months of payment savings it takes to recover your refinance closing costs.

Snowball vs Avalanche

Compare the snowball and avalanche payoff methods across all your debts — payoff time and total interest, side by side.

Siding Cost

Estimate the cost to replace your home's siding by material — vinyl, fiber cement, wood, and more.

Tree Removal

Estimate professional tree removal cost by tree size, access difficulty, and stump grinding.

Garage Door Cost

Estimate the installed cost to replace a garage door by size and material, with or without a new opener.

Foundation Repair

Estimate foundation repair costs by problem type — from crack sealing to piering and structural underpinning.

Sod Calculator

Calculate how much sod you need — rolls, pallets, and cost — from your lawn dimensions.

Tile Calculator

Calculate how many tiles and boxes you need for a floor or wall, plus material and installed cost.

Flooring Install Cost

Estimate the installed cost of new flooring — carpet, LVP, laminate, or hardwood — including labor.

Fence Install Cost

Estimate the professionally installed cost of a new fence by length, material, and height.

Concrete Slab Cost

Estimate the installed cost of a concrete slab, pad, or patio from its dimensions, thickness, and finish.

Permit Cost

Estimate typical building permit fees by project type, project value, and city size.

Unpermitted Work

Estimate what unpermitted work can cost when it's discovered — fines, retroactive permits, and resale or insurance impact.

Utilities

QR Generator

Generate a scannable QR code from any URL or text — instantly, in your browser.

PDF Merge

Combine multiple PDF files into one — entirely in your browser. Nothing is uploaded to a server.

PDF Compress

Reduce PDF file size instantly in your browser.

Password Generator

Generate strong, secure passwords instantly. Nothing leaves your browser.

Word Counter

Count words, characters, sentences and reading time instantly as you type.

Invoice Generator

Create and download professional PDF invoices free — right in your browser.

Image Compressor

Compress JPG, PNG and WebP images instantly in your browser. No uploads, no accounts.

Resume Builder

Build a free professional resume in minutes. Powered by ApplyWell.

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Color Palette Generator

Generate complementary, analogous, and triadic color palettes from any base color.