Range Calculator
Calculate the statistical range — the difference between the highest and lowest of up to eight numbers.
Your results
Calculation breakdown
- Range
- Highest value − lowest value
Worked example
Daily temperatures of 12, 45, 8 and 30 degrees give a range of 45 − 8 = 37.
Assumptions
- The first four values are always included; toggle on values 5 to 8 to include them.
- A single outlier can dominate the range.
How this calculator works
This calculator finds the highest and lowest values among up to eight numbers you enter and subtracts to give the range, a simple measure of how spread out the data is.
Frequently asked questions
What does a range of zero mean?
It means every included value is identical, so there is no spread in the data.
How do I exclude unused fields?
Turn off the toggle for any values you're not using so they're left out of the minimum and maximum calculation.
Is range affected by outliers?
Yes, the range only looks at the two extreme values, so a single outlier can make the range much larger than the rest of the data suggests.
Editorial review and responsibility
Reviewed by the CalcAussie editorial team on 21 September 2026. Review scope: Method, Australian terminology, material assumptions, source links and user-facing limitations.
Calculator results remain estimates based on the figures entered. Check material decisions against current official information and report a suspected error so it can be reproduced and corrected.