Sumyard

Average calculator

Find the mean, median, mode and range, or calculate a weighted average.

Jump to result

Your inputs

Updates as you type
Separate numbers with commas, spaces or new lines. In weighted mode, use value:weight pairs, such as 80:2, 90:1.

arithmetic mean

20

Median
20
Mode
20
Range
20
Count
4
Sum
80

The mean is the sum divided by the count; the median is the middle of the sorted values.

Calculations happen in your browser. Saving is optional.

How to use this tool

Choose an ordinary or weighted average and enter the values to include.

Weighted entries pair each value with a positive weight. Check the count and total weight to catch an omitted entry.

Mean = sum / count; weighted mean = Σ(value × weight) / Σ(weights)

Worked example

20 · arithmetic mean

Fixed example using the settings below. Monetary examples use USD; dates and times use their stated reference values. This example stays unchanged when you edit your calculation.

Example inputs
  • Calculation: Mean, median, mode and range
  • Values: 10, 20, 20, 30

Method illustration: 10, 20, 20, 30 has mean 20, median 20, mode 20 and range 20.

Assumptions and limits

  • All weights must be positive. Weights need not add to 100.
  • When every value occurs once there is no mode. All tied modes are reported. Up to 1,000 values are supported.

Check or report a result

Check the units, selected calculation and assumptions first. Compare the fixed example above with your inputs to identify what changed.

Report a calculation issue with the page address, hypothetical inputs, result displayed and result expected. Do not include passwords, bank details or other private information.