# Tempo Change Calculator

> Tempo change calculator: find the new BPM after a percent change, or the exact percent shift needed to match a target tempo or key. Free, runs locally.

- **Canonical URL:** https://boringtoolskit.com/tempo-change-calculator/
- **Category:** Music & Audio
- **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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