# Factorial Calculator

> Factorial calculator: compute n! for any number with exact large-integer results for math, statistics, and probability. Free, private, runs in your browser.

- **Canonical URL:** https://boringtoolskit.com/factorial-calculator/
- **Category:** Everyday Calculators
- **Evidence level:** catalogue
- **Reviewed:** July 26, 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

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