# Combinations and Permutations Calculator

> Combinations and permutations calculator: compute nCr and nPr with or without repetition, with formula steps shown. Free, no signup, runs locally in browser.

- **Canonical URL:** https://boringtoolskit.com/combinations-permutations-calculator/
- **Category:** Statistics
- **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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