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1RM

One Rep Max - 5 formulas

🔒100% PrivacyInstant🆓Free Forever📱Mobile Friendly
Epley80.0
Brzycki80.0
Lander80.4
Average 1RM78.2kg
◆ How it works

1RM3 simple steps

01

Weight

kg lifted

02

Reps

5-10 most accurate

◆ FAQ

Common questions.

Best formula?

+

Frequently Asked Questions

20 questions answered · Tap to expand

Questions in English

Open Toolzfy One Rep Max Calculator, enter the required input values, and see the 1RM for bench/squat/deadlift, plus working weight recommendations for 3-12 rep ranges instantly. No signup, no email, no medical professional required for basic results. Works in any browser on desktop, Android, iPhone, or tablet. Free forever with no hidden costs or daily limits.

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Frequently Asked Questions

Common questions about One Rep Max

Use the tool interface to input your data, get instant results. Simple and intuitive design.