This average calculator computes the arithmetic mean from a list of numbers. Enter decimals, fractions, or negatives and the tool calculates the average instantly.
Average calculator
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What is the average (mean)?
The average (or arithmetic mean) is the sum of all numbers divided by the count. It's one of the main ways to describe the central tendency of data, along with median and mode.
Other types of means include:
- Geometric mean - useful for financial returns and growth rates
- Harmonic mean - useful for speed and rate calculations
Formula
Add all numbers together, then divide by how many numbers there are:
Example: Average of -3, 4, 7, 7.5, 500 = (−3 + 4 + 7 + 7.5 + 500) ÷ 5 = 103.1
Using the calculator
Enter numbers separated by commas, spaces, or new lines. Results update instantly - the tool also shows median, mode, range, sum, and count.
