Calzyra
CalzyraCALCULATE | CONVERT | SOLVE
FinanceInvestmentsHealthMathBlog
Calzyra
CalzyraCALCULATE | CONVERT | SOLVE

Smart calculators for every need. Trusted by millions of users worldwide for accurate, fast, and free calculation tools.

Popular Categories

  • Finance
  • Health & Fitness
  • Mathematics
  • Physics
  • Construction
  • Conversion

Finance Tools

  • Loan Calculators
  • Investment Calculators
  • Compound Interest
  • SIP Calculator
  • ROI Calculator
  • CAGR Calculator

Top Calculators

  • Mortgage Calculator
  • BMI Calculator
  • Percentage Calculator
  • Calorie Calculator
  • Tip Calculator

Company

  • About Us
  • Blog
  • Contact
  • Privacy Policy
  • Terms of Service

© 2026 Calzyra. All rights reserved.

Trusted by 2M+ monthly users
  1. Home
  2. Sports
  3. Strength Training
  4. One Rep Max (1RM) Calculator
Sports CalculatorStrength Training

One Rep Max (1RM) Calculator

Estimate your one-rep max (1RM) for any exercise based on the weight lifted and reps completed.

Updated 2025-01-153 min read

Calculator

Enter your values below

Formula

How it works

1RM = Weight × (36 / (37 - Reps))

Epley formula estimates maximum lift capacity from submaximal performance.

FAQ

Common questions

Strength Training Calculators

One Rep Max (1RM) CalculatorTDEE Calculator (Total Daily Energy Expenditure)Training Volume Calculator

Related

TDEE Calculator (Total Daily Energy Expenditure)

Calculate your daily calorie needs.

Quick Links

All Sports CalculatorsStrength Training Category