1RM Calculator
The 1RM Calculator estimates your one-rep maximum for strength training, using weight and reps to guide safe, effective program progression.
Maximum Weight (1RM) Calculator
Estimated 1RM: 116.67
What is the 1RM Calculator?
The 1RM Calculator estimates your one-rep maximum for strength training, using weight and reps to guide safe, effective program progression.
Why use our tool?
- Instant Results: Powered by modern web technologies, results appear exactly as you type.
- 100% Free: No hidden fees, no subscriptions, and no registration required to use the 1RM Calculator.
- Mobile Friendly: Works perfectly and beautifully on your smartphone, tablet, or desktop.
- Privacy First: All calculations are performed directly in your browser. No personal data is sent to our servers.