📊 Statistics Calculator
Paste or type a list of numbers and get a full descriptive-statistics summary in one place: count, sum, mean, median, mode, min, max, range, population and sample variance, population and sample standard deviation, and the quartiles Q1/Q3 with IQR. Everything is computed live in your browser — free, private, and offline-capable.
Separate values with commas, spaces, or new lines.
Private by design. This tool runs entirely in your browser — nothing you enter is uploaded or stored, and it works offline.
About
The calculator accepts numbers separated by commas, spaces or new lines, so you can paste a column straight from a spreadsheet. It reports both the population and the sample versions of variance and standard deviation — the sample version divides by n−1 (Bessel's correction) and is the right choice when your data is a sample of a larger group. Quartiles use linear interpolation. All results can be copied at once for pasting into a report.
How to use
- Paste or type your numbers, separated by commas, spaces, or new lines.
- Results appear instantly — mean, median, mode, SD, variance, quartiles and more.
- Use 'Copy all' to grab every statistic as text for your report or homework.
FAQ
- What's the difference between population and sample values?
- Population variance/SD divides by n; sample versions divide by n−1. Use the sample version when your data is a subset of a larger group.
- How is the median or a quartile computed for even-sized data?
- By linear interpolation between the two surrounding values, the standard method used by most statistics tools.
- Is my data uploaded anywhere?
- No. All calculations run in your browser and nothing is sent to a server.