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Free Statistics Calculator Online
Free Statistics Calculator Online is a free online tool by US AI. Mean median mode SD. It runs completely in your browser — no signup, no download, works on mobile and desktop.
📖 How to use
- Paste your numbers separated by commas, spaces or lines, then press Calculate for mean, median, mode, range and standard deviation.
- Open the tool with the button above — it loads instantly.
- Your work stays on your device; nothing is uploaded anywhere.
✨ Why use this tool?
US AI's free statistics calculator online is fast, private and 100% free forever. Bookmark this page and share it with anyone who needs it.
❓ Frequently asked questions
What statistics does this calculator compute?
Paste your data and it instantly returns the mean, median, mode, range, variance, standard deviation, and the count of values.
What is the difference between sample and population standard deviation?
Population standard deviation divides by N (the whole group); sample standard deviation divides by N-1 to correct the bias when your data is only a sample of a larger group.
How many data points can I enter?
You can paste long lists of numbers — the tool processes them instantly in your browser, and your data never leaves your device.