Average Calculator

Paste a list of numbers to see the mean immediately, then inspect sum, count, median, range, standard deviation, related means, and a reusable sorted dataset.

DatasetSeparate values with commas, spaces, semicolons, or new lines

Numbers

Display precision

Standard deviation

For unambiguous parsing, do not use commas as thousands separators inside a single number. Example: type 1200, not 1,200.

Arithmetic mean

17.5

70 ÷ 4 = 17.5

70Sum

4Count

17.5Median

15Range

10Minimum

25Maximum

5.5902Std. deviation

31.25Variance

—Geometric mean

—Harmonic mean

—Midrange

Calculation

Add the values, then divide by the number of values.

Sorted values4 values

10, 15, 20, 25

Ready

Distribution, outliers & weighted average

Use the same dataset above for quartiles and outlier screening, or enter value:weight pairs for a weighted mean.

—Q1

—Q3

—IQR

—Mode(s)

—1.5×IQR outliers

Weighted values (value:weight)

—Weighted average

—Total weight

Ready.

Formula and interpretation

arithmetic mean = sum of values ÷ count.

The mean can be pulled by outliers; use statistics tools when median or spread matters.