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?
An average is a single number that summarises a list of values. The most common is the mean: add everything up and divide by how many there are. The median is the middle value when the numbers are sorted, the mode is the value that appears most often, and the range is the gap between the largest and smallest. Together these show where a data set sits and how spread out it is. This calculator returns the mean, median, mode, range, sum and count for any list of numbers, including decimals and negatives.
How it's calculated
The mean is the sum divided by the count: for 4, 8, 15, 16, 23, 42 the sum is 108 and there are 6 values, so the mean is 108 divided by 6 = 18. The median is the middle value after sorting; with an even count it is the average of the two middle numbers, so this set gives (15 + 16) divided by 2 = 15.5. The mode is the most frequent value (none here, since each appears once), and the range is 42 - 4 = 38.
Example
Take 2, 7, 3, 7, 5. The mean is (2 + 7 + 3 + 7 + 5) divided by 5 = 24 divided by 5 = 4.8. Sorted it is 2, 3, 5, 7, 7, so the median is the middle value, 5. The value 7 appears twice, so the mode is 7, and the range is 7 - 2 = 5.
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.