2 Calculators in this Category

Fitness & Training Calculators

Optimize your athletic training routines. Calculate target marathon running splits, predict your 1RM barbell lift from submaximal sets, track exercise calories using MET values, and dial in sports nutrition.

Available Fitness & Sports Calculators

2 Tools Available

Running

Running Pace & Speed Calculator

Calculate running pace per km and mile, running speed (mph/kmh), and projected finish times for 5k, 10k, half marathon, and marathon races.

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Strength

1-Rep Max (1RM) Strength Calculator

Calculate your 1-Rep Max (1RM) for bench press, squat, and deadlift using Brzycki, Epley, and Lander formulas. Includes 1-12 rep percentage chart.

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Fitness & Sports FAQs

What formulas are used for the 1-Rep Max calculator?

We use the Brzycki, Epley, and Lander formulas to calculate your estimated 1-Rep Max and provide a comprehensive rep breakdown table from 1 to 12 repetitions.