Built for real work
Epley, Brzycki, and Lombardi 1RM formulas—same as calculator.net.
One Rep Max Calculator — 1RM Bench, Squat & Deadlift
Estimate your one-rep max from weight and reps using Epley, Brzycki, or Lombardi formulas.
General lift — one rep max estimator
Use weight you can lift 1–10 times with proper form for best accuracy.
1RM = weight × (1 + reps ÷ 30)
Fast and focused
Training percentage table at 50–100% of estimated max.
Clear results
Bench press, squat, deadlift, and general lift modes.
Main features of One Rep Max Calculator:
Enter the required fields—dates, amounts, percentages, or measurements as labeled.
Double-check units (currency, tax rate, height/weight) match your scenario.
Run the calculation and read the breakdown, not just the headline number.
Adjust inputs to compare scenarios, or open a related Rankify calculator for the next step.
FAQ
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