What the tool does, how to run it, and what to expect from the result.
Range = maximum − minimum. For 12, 7, 9, 12, 15, 3, 8 it is 15 − 3 = 12. It is the simplest measure of spread but depends only on the two most extreme values, so the interquartile range (here 5), which covers the middle half of the data, is often more telling.
A quick way to understand who this helps, what it solves, and where it connects next.
Students, teachers, analysts and researchers working with data.
Using the range calculator without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
No. The maximum is never below the minimum, so the range is zero or positive.
Range spans all the data; IQR spans the middle 50% (Q3 − Q1), so one extreme value does not change it.
Nearby tools from the catalog that fit the same job or workflow.
IQR = Q3 − Q1, with outlier fences
IQR = Q3 − Q1, with outlier fences. Free, instant, in your browser.
Any percentile of a list, and percentile rank
Any percentile of a list, and percentile rank. Free, instant, in your browser.
Mean, median, mode and range in one go
Mean, median, mode and range in one go. Free, instant, in your browser.
The middle value, with how it was found
The middle value, with how it was found. Free, instant, in your browser.
Most frequent value, with a frequency table
Most frequent value, with a frequency table. Free, instant, in your browser.
Find outliers with the 1.5 × IQR rule
Find outliers with the 1.5 × IQR rule. Free, instant, in your browser.
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