ABOUT US
We’re on a mission to make strength training smarter. StrengthCalc provides
free, science-backed calculators — from one rep max estimators to body
composition tools — so every lifter can train with precision.
free, science-backed calculators — from one rep max estimators to body
composition tools — so every lifter can train with precision.
WHAT WE STAND FOR
Accuracy First
We use scientifically validated formulas — Epley, Brzycki, Lander, and more — to deliver the most reliable one rep max estimates possible.
Built for Everyone
Whether you're a beginner learning to bench press or an elite powerlifter peaking for competition, our tools scale to your level.
Evidence-Based
Every calculator, standard, and recommendation is grounded in peer-reviewed research and real-world training data.
Progress Focused
We believe strength training should be measurable. Our tools help you track, compare, and push past your personal records.
READY TO FIND YOUR MAX?
Use our free 1RM calculator, strength standards, and training tools to take your
lifting to the next level.
lifting to the next level.