Average (Mean) Calculator
Finds the arithmetic mean of a list.
Result
- Mean
- 17.1667
- Sum
- 103
- Count
- 6
How to use the average (mean) calculator
- Enter the numbers (separated by commas).
- The results update as you type, or press Calculate.
- Read the mean first, then the supporting figures below it.
Formula
Mean = sum ÷ count.
Worked example
For example, with these inputs:
- Numbers (separated by commas): 12, 15, 9, 22, 15, 30
the calculator returns:
- Mean: 17.1667
- Sum: 103
- Count: 6
Background
Calculators are best used to check working rather than replace it, especially for exams where method marks count. Work the problem by hand first, then confirm with the calculator.
A quick mental estimate before calculating is a powerful check. If a room's floor area comes out at 4,000 square metres or a percentage comes out above 100% when it should not, you know to look again.
Frequently asked questions
How does the average (mean) calculator work?
It applies this formula: Mean = sum ÷ count.
Can I use any units?
Yes, as long as every input uses the same unit. The answer will be in that unit (squared for areas, cubed for volumes).