Training Tools
Explore our curated collection of calculators and guides related to Training. Use these scientific tools to optimize your performance and health.
Marathon Race Predictor
Predict your marathon time based on a recent race result (5K, 10K, Half) using the Riegel formula.
Heart Rate Zone Calculator
Calculate your 5 training zones based on Max Heart Rate or Heart Rate Reserve (Karvonen).
One Rep Max Calculator
Estimate your 1RM for Squat, Bench, and Deadlift without testing to failure.
Heart Rate Training Zones for Age 40 (Max HR 180 bpm)
Calculate your 5 training zones based on Max Heart Rate or Heart Rate Reserve (Karvonen).
Heart Rate Training Zones for Age 50 (Max HR 170 bpm)
Calculate your 5 training zones based on Max Heart Rate or Heart Rate Reserve (Karvonen).
Marathon 4 Hour Pace Calculator & Predictor
Predict your marathon time based on a recent race result (5K, 10K, Half) using the Riegel formula.
Marathon 5h30min Pace Calculator & Predictor
Predict your marathon time based on a recent race result (5K, 10K, Half) using the Riegel formula.
Marathon 6 Hour Pace Calculator & Predictor
Predict your marathon time based on a recent race result (5K, 10K, Half) using the Riegel formula.
Marathon Boston Qualifier (BQ) Pace Calculator & Predictor
Predict your marathon time based on a recent race result (5K, 10K, Half) using the Riegel formula.