One Rep Max Calculator (1RM)
Estimate 1RM with Epley, Brzycki and Lombardi; compare methods and training percentages.
Sports & Fitness2 calculators
Sports & Fitness Calculators
Estimate lifting strength, calculate running pace, and plan race splits. Every calculator is free, runs in your browser and shows the formula and steps behind each answer.
Available sports & fitness calculators
Running Pace Calculator
Calculate pace, finish time, distance, speed, and kilometer, mile or track-lap splits.