One Rep Max (1RM) Weightlifting Calculator

Calculate maximum single-rep strength (1RM) with powerlifting training percentages.

About the One Rep Max (1RM) Weightlifting Calculator

One Rep Max (1RM) Weightlifting Calculator is a free tool in the Health, Pregnancy & Family section that runs entirely in your browser, so nothing is uploaded to a server. People often search for it as "one rep max calculator", "1rm calculator", "bench press max calculator". The result is based on: Brzycki Formula: Weight / (1.0278 - 0.0278 * Reps). Once you have your result, continue with US Navy Body Fat Calculator, Bulking & Cutting Macros & Calories Calculator and Calorie Needs (BMR & TDEE) Calculator, or browse all Health, Pregnancy & Family tools (19).

1Enter required parameters into the One Rep Max (1RM) Weightlifting Calculator fields.
2The calculation and processing execute instantly with 100% accuracy.
3Copy your results or download the generated output with one click.

Brzycki Formula: Weight / (1.0278 - 0.0278 * Reps)

Brzycki Formula: Weight / (1.0278 - 0.0278 * Reps)

US Navy Body Fat Calculator: The accurate military formula to calculate body fat percentage using neck, waist, and hip tape… — Bulking & Cutting Macros & Calories Calculator: Calculate daily calories and exact macro splits (protein, carbs, fats) for cutting or bulking. — Calorie Needs (BMR & TDEE) Calculator: Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure for weight goals.

Yes, One Rep Max (1RM) Weightlifting Calculator on Snpati Tools is 100% free forever without subscriptions or account registration.

Absolutely! All calculations and processing occur directly in your browser (Client-side) with zero server-side storage.

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