Average Calculator
Find the mean, sum, and count of a list of numbers.
Average
Find the mean, sum, and count of a list of numbers.
Mean
20
- Sum: 60
- Count: 3
How it works
Enter a list of numbers separated by commas or spaces.
All values are added together, then divided by how many values there are.
This calculator currently calculates the arithmetic mean only — it does not calculate the median or mode.
Formula
mean = sum of values ÷ number of values
Worked example: The average of 10, 20, 30 is 20
More examples and edge cases
- The average of 4, 8, 15, 16, 23, 42 is 18 (sum 108 across 6 values)
- Negative values are allowed: the average of -5, 5, 10 is 3.333333
- The mean is pulled by extreme values: 10, 12, 11, 13 average 11.5, but adding 100 raises the average to 29.2