Free Tool
Average Calculator
Find the sum, average, minimum and maximum of any list of numbers.
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Average formula
Average = (sum of all numbers) ÷ (count of numbers). For 10, 20, 30, 40 and 50 the sum is 150 and the average is 30.
Useful tricks
- If every number increases by k, the average increases by k.
- Average of the first n natural numbers = (n + 1) ÷ 2.
- If one value is replaced, the change in total ÷ count gives the change in average.
Practise more in our practice papers.