The Gym Calculator

Gym Calculators & Strength Standards

Estimate your 1RM, compare strength, plan training, load a barbell, calculate nutrition targets, and use practical running tools.

Estimated 1RM262.5 lb
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Strength Standards

See beginner through elite benchmarks for popular exercises.

Browse all standards
Bench PressSquatDeadliftDumbbell Bench PressShoulder PressLat PulldownBarbell CurlLeg PressRomanian DeadliftHip Thrust

The Big Three

How Strong Are You?

Choose an exercise and enter a recent set to compare with the existing strength-standard data.

For dumbbell exercises, enter the weight of one dumbbell. Results are estimates, not competition rankings.

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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View full Bench Press standards

Browse by Category

TrainingStrength and workout planningPowerliftingScores, totals, and the big threeNutritionCalories, macros, and hydrationBody CompositionBody fat, BMI, FFMI, and moreRunningPace, VO₂ max, and race predictionsAll CalculatorsBrowse every available toolStrength StandardsExplore all exercise benchmarks

What Do You Want to Do?

Estimate my maxCompare my strengthPlan workout weightsBuild warm-up setsLoad my barbellCompare powerlifting performanceCalculate caloriesCalculate macrosPlan running pace

About The Gym Calculator

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: an estimated one-rep max, a sensible warm-up sequence, plates for the bar, a training percentage, or a comparison with established strength benchmarks.

Strength results are estimates rather than promises. Performance changes with technique, exercise standards, fatigue, equipment, and training experience, so comparisons are most useful when you repeat them under similar conditions. The strength-standard library provides beginner through elite reference points for 68 exercises and lets you explore available comparisons by sex, bodyweight, and age. The homepage strength check uses that same data rather than a separate set of benchmarks.

Nutrition and body-composition calculators provide planning estimates for needs such as energy, protein, macros, hydration, BMI, and body fat. They are educational tools and are not a substitute for individualized medical or dietetic advice. Running tools can help translate pace and predict race performance, but terrain, weather, preparation, and pacing all affect real results.

Each calculator explains its method and limitations so you can understand what the output means. Start with a popular tool above, browse by category, or search for a specific goal. Use the results as a consistent reference, combine them with your own training history, and adjust based on how you perform and recover.

The site is organized around tasks rather than forcing every tool into the same URL pattern. Broad calculators are easy to reach, while focused tools and the strength-standard library stay grouped within clear categories. This makes it straightforward to move from a quick estimate to a detailed exercise page, compare related tools, or return to a calculation during a workout. No account is required, and the tools are built to work on phones as well as larger screens.