Range Calculator
Calculate the range of a data set — the largest value minus the smallest.
What is Range?
The range is the largest value minus the smallest: the full width of the data in one subtraction. It is the quickest measure of spread and the least robust, because it is built from the only two values most likely to be unusual — which is why it is nearly always reported next to a spread measure that ignores the extremes.
How it works
Sorting the list gives both extremes at once, and the range is their difference. The same pass yields the quartiles, so the interquartile range — the width of the middle half — is shown beside it, making the effect of the extremes visible on the same screen rather than on a different page.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Type or paste any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.