Arithmetic Mean Calculator

Calculate the arithmetic mean (average) of a list of numbers: enter your values and get the count and the mean instantly, with a worked example.

Calculator

Values4
Mean7.5

Method and variables

Arithmetic Mean Calculator

Formula: mean = sum of values / number of values

  • x — each numeric value
  • n — number of values

Assumption: Each value is treated with equal weight.

Worked example

Arithmetic Mean Calculator

The mean of 4, 7, 9 and 10 is 30 / 4 = 7.5.

Important limits

  • Arithmetic Mean Calculator: The arithmetic mean can be misleading for strongly skewed data or values with different weights.