Strength Calculators
Free strength training calculators: estimate your one-rep max for any lift, check your strength level against standards, score your powerlifting total with Wilks and DOTS, and plan barbell plate loading.
One-Rep Max Calculators
Estimate your one-rep max from a working set using the average of four proven formulas, and get a full table of training weights for every rep target. Available for any lift plus dedicated bench, squat, and deadlift versions.
One Rep Max Calculator
Estimate your one-rep max for any lift from the weight and reps of a working set. Averages the Epley, Brzycki, Lombardi, and O'Conner formulas and gives a full training-percentage table.
Bench Press 1RM Calculator
Estimate your bench press one-rep max from the weight and reps of a working set, with a full bench training-percentage table. Uses the average of four trusted 1RM formulas.
Squat 1RM Calculator
Estimate your back squat one-rep max from a working set and get a full squat training-percentage table. Uses the average of four established 1RM formulas.
Deadlift 1RM Calculator
Estimate your deadlift one-rep max from a working set, with a full deadlift training-percentage table. Uses the average of four proven 1RM formulas.
Strength Standards & Powerlifting Scores
See how your lifts stack up against population strength standards, and normalize your powerlifting total across bodyweights and sexes with the Wilks and DOTS coefficients.
Strength Level Calculator
See how your lifts compare to strength standards. Enter your sex, bodyweight, lift, and 1RM to find your level from beginner to elite, with the full standards table.
Wilks Calculator
Calculate your Wilks score from your bodyweight and powerlifting total to compare strength across bodyweights and between men and women. Toggle to DOTS for the newer coefficient.
DOTS Calculator
Calculate your DOTS score from your bodyweight and powerlifting total — the modern successor to the Wilks coefficient for comparing strength across bodyweights and sexes.
Barbell & Loading Tools
Practical gym tools that take the math out of training, starting with exact barbell plate loading for any target weight.
About Our Strength Calculators
Our collection of strength calculators helps athletes of all levels track their performance, set realistic goals, and optimize their training. Whether you're a beginner looking to complete your first 5K or an experienced marathoner aiming for a personal best, these free tools provide the insights you need.
All calculators use scientifically validated formulas and are designed to be easy to use on any device. Simply enter your data and get instant results that you can use to plan your training and track your progress.