Average Calculator

The arithmetic mean is the sum of all values divided by how many there are. Enter your numbers separated by commas or spaces — for example "12, 15, 18, 20" — and this tool returns their average along with the count.

Averages are the everyday summary statistic for grades, expenses, temperatures and sports scores. Keep in mind that outliers pull the mean strongly; a single extreme value can shift it a lot. For grade averages with different weights per subject, use the weighted average calculator.