Range of Numbers Calculator

The range of a dataset is the largest value minus the smallest value — the simplest possible measure of how spread out your numbers are. Enter up to six values to see the range, minimum, maximum, and average calculated instantly. A range of zero means all values are identical, while a large range signals high variability. Because range only depends on the two extreme values, a single outlier can dramatically change the result without affecting the other five numbers at all. This makes range most reliable when your data is reasonably uniform and free of extreme values. For quick data checks, classroom statistics, temperature tracking, test score comparisons, or any situation where you just need to know the spread, this calculator provides an instant answer without a spreadsheet. The average is shown alongside the range so you can immediately sense whether the data is spread evenly around a central value or skewed toward one end — an important distinction when interpreting any dataset.

The calculator scans all six input values to identify the largest (maximum) and the smallest (minimum). It then subtracts the minimum from the maximum to compute the range: Range = Max − Min. The average (mean) is also displayed as the sum of all six values divided by six. Both the range and the average together give you a quick sense of how spread out and how central your data is. Range answers the question 'how wide is my dataset?' while the average answers 'where is the centre?' Comparing the two reveals important patterns — for example, a large range alongside an average close to one extreme often signals the presence of an outlier pulling one end of the data. All six values are always included in the calculation, so ensure every field contains a valid number before interpreting the results.