Everyday Math

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Average Calculator

Average comma-separated numbers instantly.

Data updated: 2026-08-12 Content updated: 2026-10-22
Sources

How is it calculated?

Average = sum / count.

average = Σx / n

Official sources

Calculation methodology Report a wrong result

Example

10, 20, 30, 40 → average 25.

Guide

Arithmetic mean of a comma-separated list of numbers for grades, readings, or costs. Informational—does not model sampling error.

How the average works

Average = sum ÷ count. Invalid entries are skipped. Median and mode are not produced here.

2026 notes and common mistakes

Outliers can skew the mean. Do not confuse a simple mean with a weighted average.

Tips

  • Keep all values in the same unit.
  • For information only—use weighted tools when credits matter.

Sources: Basic statistics · Math references

FAQ

Can I enter decimals? +

Yes.

Next steps