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Average calculator

Calculate the arithmetic mean (average) of a list of numbers separated by commas or line breaks.

Processed on your device. Nothing is sent to any server.

Average

18

Adds up all valid values and divides the total by the number of values.

Use cases

  • Calculating the average grade of a set of exams.
  • Calculating average monthly spending.
  • Quickly analyzing a small data set.

How it works

  1. 1

    Paste your numbers

    Type or paste the list of numbers, separated by commas or on separate lines.

  2. 2

    Read the result

    The average is calculated automatically.

Technical details

  • Calculates the arithmetic mean: the sum of the values divided by how many there are. Example: (4 + 8 + 15 + 16 + 23 + 42) / 6 = 18.
  • Separate values with commas or line breaks. Because of that, decimals in the list must use a dot: "2,5" is read as two values, 2 and 5. Anything that isn't a number is ignored.
  • The result is rounded to 4 decimal places. It doesn't compute weighted averages: every value counts the same.

Frequently asked questions

What happens with non-numeric values?

They are automatically ignored; only values that can be interpreted as numbers are counted.

How do I calculate a weighted average, such as grades with different weights?

This calculator gives every value the same weight. To weight them, multiply each grade by its weight, add those products and divide by the sum of the weights: (7 × 0.4 + 9 × 0.6) / 1 = 8.2.

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