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One Rep Max Calculator
Calculate lift strength estimates
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How to Use
- Open One Rep Max Calculator on this page — no account or install required.
- Provide your input (paste text, upload a file, or adjust settings depending on the tool).
- Run the tool — processing happens entirely in your browser.
- Copy or download the result when you are done.
About This Tool
Estimate your lifting one-rep max (1RM) using Epley and Brzycki equations.
ToolForge runs one rep max calculator client-side so your data never leaves your device. It is free, requires no sign-up, and works on desktop and mobile browsers.
strength1rmpowerliftingweightliftinggym
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