About the statistics calculator
This statistics calculator gives you the full set of descriptive statistics for any data set. Paste your numbers and it returns the mean, median, mode, range, minimum, maximum, sum, count, variance and standard deviation (both sample and population) — all calculated instantly in your browser.
How Statistics works
How to use it
- Paste your numbers, separated by spaces, commas or new lines.
- The statistics calculate instantly (or click Calculate).
- Read the mean, median, mode and the full table of measures.
Mean, median and mode
The mean is the average; the median is the middle value when sorted; the mode is the most frequent value. Together they describe the centre of your data.
Sample vs population
Variance and standard deviation are shown both ways: the sample version divides by n−1 (use it for a sample of a larger group), and the population version divides by n (use it when you have every value).
Common uses
- Find the mean, median and mode
- Calculate variance and standard deviation
- Summarise a data set quickly
- Check homework and statistics answers
- Analyse survey or test scores
- Compare spread between data sets
- Get min, max and range
- Compute descriptive statistics for a report
Frequently asked questions
How do I calculate the mean?
Add all the values and divide by how many there are — this tool does it instantly along with median, mode and more.
What is the difference between sample and population standard deviation?
Sample divides by n−1 (for a sample of a larger group); population divides by n (when you have every value).
What if there is no mode?
If no value repeats, the data has no mode — the tool will say so.
How do I enter my numbers?
Separate them with spaces, commas or new lines.
Is my data uploaded?
No — everything is calculated in your browser.
Can it handle decimals and negatives?
Yes — any real numbers work.
What is the median of an even count?
The average of the two middle values.
Is it free?
Yes — completely free with no sign-up.