# Macro Magnification Calculator

> Macro magnification calculator: work out magnification ratio and working distance from lens, extension tube, and sensor specs. Free, private, no signup.

- **Canonical URL:** https://boringtoolskit.com/macro-magnification-calculator/
- **Category:** Photo & Video
- **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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