One Rep Max Calculator
Estimate your 1RM from any weight and rep combination.
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Train smarter.Know your numbers.
Free tools for strength, nutrition, and training.
Popular calculators
Popular calculators to help you train, eat, and perform better.
Strength Standards
Compare your lifts with population-based strength standards.
Open calculatorCalorie Calculator
Estimate your daily calorie needs for your goals.
Open calculatorMacro Calculator
Set your daily protein, carbohydrate, and fat targets.
Open calculatorBody Fat Calculator
Estimate body fat using your measurements.
Open calculatorBench Press Converter
Convert between barbell and dumbbell bench press weights.
Open calculatorStrength standards
See beginner through elite benchmarks for popular exercises.
The Big Three
Bench Press
Squat
Deadlift
How strong are you?
Choose an exercise and enter a recent set to compare with the existing strength-standard data.
Your strength level
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Enter your lift to see your result.
- Estimated 1RM
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- Bodyweight ratio
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Find your sport.
Explore calculators and tools for the way you train.
Strength TrainingStrength standards, rep maxes, and training tools.PowerliftingSquat, bench, deadlift, scoring, and meet preparation.WeightliftingSnatch, clean and jerk, totals, and attempt planning.RunningPace, race predictions, splits, and training speeds.CyclingGearing, cadence, speed, and power calculators.CardioRowing, swimming, treadmill, and conditioning tools.
More tools. More possibilities.
More training tools
Additional tools to support your training, lifestyle, and long-term results.
Plate Calculator
Build the right load with available plates.
Open calculatorTraining Percentages
Plan your workout weights from your maximum.
Open calculatorWarm-Up Calculator
Generate progressive warm-up sets.
Open calculatorDOTS Calculator
Compare powerlifting performance by bodyweight.
Open calculatorProtein Calculator
Set a practical daily protein target.
Open calculatorRPE Calculator
Translate effort into useful training intensity.
Open calculatorPace Calculator
Plan running pace and convert speeds.
Open calculatorThe numbers behind
better training.
The Gym Calculator brings practical strength, training, nutrition, body-composition, and running tools together in one place. It is designed to help you turn everyday training numbers into information you can use in every step of your training.