About this calculator
Separate numbers with commas, spaces or new lines.
How to use it
- Type or paste the numbers.
- Read the results.
The formula
Mean = sum ÷ count; median = middle value after sorting
- mode
- value that appears most often
- range
- largest − smallest
Worked example
12, 15, 20, 15, 8, 30
- Sum 100, count 6: mean 16.67.
- Sorted: 8, 12, 15, 15, 20, 30; median 15; mode 15; range 22.
What the result means
The median is less affected by extreme values than the mean.
Assumptions
- Real numbers.
Limitations
- Up to 10,000 numbers.
Frequently asked questions
What is the difference between mean and median?
Mean adds and divides; median is the middle value.
What if no number repeats?
There is no mode.
How do I find the average of percentages?
Use a weighted average if the groups differ in size.
Last reviewed on 3 October 2026. Found a mistake? Tell us.