Statistics Calculator
Paste a list of numbers to get mean, median, mode, range, variance, standard deviation and quartiles.
About Statistics Calculator
This statistics calculator online gives you the key summary statistics for any list of numbers. Paste or type values separated by commas, spaces or new lines and you instantly get the mean, median, mode, range, variance, standard deviation and quartiles.
Both population and sample values are shown, so it works for class assignments, research data and quick checks at work. It is a handy mean, median and mode calculator and an online mean and standard deviation calculator in one. It is free, needs no sign-up, and your data stays on your device.
How to use Statistics Calculator
- Paste or type numbers separated by commas, spaces or new lines.
- Read the summary statistics instantly.
- Use population values for a whole group and sample values when your data is a sample.
Frequently asked questions
Population or sample standard deviation — which should I use?
Use population (divide by n) when your list is the whole group. Use sample (divide by n − 1) when it is a sample used to estimate a larger group.
How are quartiles calculated?
Using linear interpolation between ranked values (the same method as Excel QUARTILE.INC). Other textbooks use slightly different methods, which can give small differences.
What if no value repeats?
Then the data has no mode. If several values share the highest count, all of them are modes.
How do I find the mean, median and mode?
The mean is the total divided by the count, the median is the middle value when sorted, and the mode is the value that appears most often. Paste your numbers to get all three at once.
What is standard deviation?
It measures how spread out the values are from the mean. A small standard deviation means the numbers are close together.
Can I paste data from Excel?
Yes. Copy a column of numbers and paste it in; new lines are treated as separators.
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