Average Calculator
Enter a list of numbers to find the mean, median, mode and range, along with the sum and count.
Reviewed by the WorldCalcs team · Methodology · Last reviewed: June 2026
Result
- Mean
- 18
- Median
- 15.5
- Mode
- none
- Range
- 38
- Sum
- 108
- Count
- 6
- Minimum
- 4
- Maximum
- 42
What is an average?
"Average" usually means the arithmetic mean — the sum of all values divided by how many there are. But there are three common measures of a typical value: the mean, the median (the middle value) and the mode (the most frequent value). Each describes the centre of a data set in a different way, and together they give a fuller picture than any one alone.
How the averages are calculated
The mean is the sum of the values divided by the count: mean = (x₁ + x₂ + … + xₙ) / n. The median is the middle value once the numbers are sorted; with an even count it is the average of the two middle values. The mode is the value that appears most often — a set can have one mode, several, or none if every value is unique. The range is the largest value minus the smallest.
Example
For 4, 8, 15, 16, 23, 42: the sum is 108 and the count is 6, so the mean is 108 ÷ 6 = 18. Sorted, the two middle values are 15 and 16, so the median is 15.5. Every value appears once, so there is no mode. The range is 42 − 4 = 38.
All calculations happen in your browser. Nothing is sent, stored, or tracked.
Results are estimates and may contain errors — for general information only, not professional advice. Always verify before relying on them. Disclaimer
How to use
Type your numbers separated by commas, spaces or new lines. Decimals and negatives are fine; blank entries are ignored.
The calculator returns the mean, median, mode, range, sum, count, minimum and maximum as you type.