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One Rep Max Calculator

Estimate one-rep max from weight and reps using the Epley formula.

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User Reviews

Average 4.8 stars based on 6 user reviews.

Emily Lin2026-03-09
Role: Fitness Coach

I found One Rep Max Calculator while looking for free online one rep max, and the real issue was that health formulas are not always intuitive. Weight and clear numeric input are on the same page, so I can enter body or training data and get a reference value without stitching several tools together.

Tina Guo2026-06-14
Role: Health Manager

For one rep max work, the important part is whether the output is easy to verify. One Rep Max Calculator puts clear numeric input up front, inputs stay organized for repeated tracking, and it handles 1rm calculator work without sending me to another page.

David Zhang2026-03-19
Role: Runner

Our team runs into this during training estimates: recalculating after parameter changes is tedious. One Rep Max Calculator keeps the one rep max flow short, and direct result explanation helps with pre-handoff review for repeated Runner work.

Kevin Wang2026-06-24
Role: Nutrition Consultant

I needed one rep max that could enter body or training data and get a reference value, not just a generic page. One Rep Max Calculator keeps direct result explanation and easy parameter changes close to the real workflow, and it supports training, nutrition, and goal review.

Ryan Liu2026-03-03
Role: Everyday User

For people searching one rep max without upload, this page matches the intent well. It is not a generic utility; One Rep Max Calculator is built around 1rm calculator; it does not overcomplicate a simple estimate, and the result is easy to keep working with.

Steven Sun2026-06-08
Role: PE Teacher

During daily health tracking, One Rep Max Calculator solves the part I worry about most: recalculating after parameter changes is tedious. By keeping daily tracking support visible in the workflow, there is less manual cleanup, and it turns daily health inputs into useful reference values, so it belongs in my regular tool list.