Daily Screen Time Calculator

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

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Enter your values and click Calculate

The average adult now spends over ten hours per day looking at screens, yet most people underestimate their own usage because it is spread across multiple devices. This calculator adds up your phone, computer, TV, and tablet time to reveal your true combined daily total — and then extrapolates to weekly and yearly figures that are genuinely eye-opening. Seeing that 8 hours per day equals 2,920 hours per year or 121 full days puts digital habits in a concrete perspective. Parents monitoring children's usage, individuals tracking a digital-detox goal, therapists working with clients on phone addiction, and researchers studying sedentary behaviour all use total screen time totals as a primary metric.

How It Works

Daily total = phone + computer + TV + tablet (all in hours). Weekly total = daily × 7, since a week has 7 days. Yearly total = daily × 365, using a standard 365-day year. Percentage of day = (daily ÷ 24) × 100, since a full day has 24 hours. Each input is independently validated as a non-negative number. If any value is NaN the calculator returns an error rather than silently including a zero. All results are rounded to one decimal place for readability except the yearly total which is rounded to the nearest whole hour.

Examples

Heavy user
3h phone, 8h computer, 3h TV, 1h tablet.
Result: 15 hours/day (62.5% of the day), 5,475 hours/year.
Moderate user
2h phone, 4h computer, 2h TV, 0h tablet.
Result: 8 hours/day, 2,920 hours/year.
Low screen user
1h phone, 0h computer, 1h TV, 0h tablet.
Result: 2 hours/day (8.3% of the day), 730 hours/year.

Frequently Asked Questions

What is a healthy amount of screen time for adults?
There is no universal daily limit for adults, but the American Academy of Sleep Medicine and similar bodies recommend at least one to two hours of screen-free time before bed to support melatonin production and sleep quality. Regular breaks using the 20-20-20 rule (every 20 minutes, look 20 feet away for 20 seconds) help reduce eye strain.
Should work screen time count?
Yes. All screen exposure contributes to eye strain, postural fatigue, and blue-light effects regardless of whether the purpose is work or leisure. Including work hours gives you the most accurate picture of total daily exposure and helps you decide where to make reductions.
Why does my yearly total look so large?
Small daily habits compound dramatically over a year. Eight hours per day equals 2,920 hours per year — equivalent to 121 full 24-hour days, or about 365 full working days. Seeing the annual figure is often the most motivating way to evaluate a digital habit change.

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