Descriptive statistics calculator
Calculate mean, median, mode, standard deviation, variance and more from a dataset. Supports sample and population variance.
- Free, no sign-up
- No data stored
- Reviewed 2026-01-15
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About the Statistics Calculator
Paste a set of numbers to get a full descriptive statistics summary: mean, median, mode, range, standard deviation, variance, quartiles, IQR and sum. Choose between population and sample variance.
How to use the Statistics Calculator
- Enter numbers separated by commas, spaces or newlines.
- Choose population or sample variance.
- Set decimal precision.
- View all statistics at once.
Frequently asked questions
When do I use population vs sample?
Use population (N) when your data includes every member of the group. Use sample (N−1) when the data is a subset drawn from a larger population.
What is the interquartile range?
IQR = Q3 − Q1. It measures the spread of the middle 50% of data and is robust to outliers.
Can I paste from a spreadsheet?
Yes. Copy a column from Excel or Google Sheets — each value on a new line is accepted.