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Estimate your 1RM from any set and get a percentage-of-1RM training table.
Calculate max heart rate and five training zones using Karvonen or percent-max.
Estimate aerobic capacity from a 12-minute run, 1.5-mile run, or resting heart rate.
Check waist-to-hip and waist-to-height ratios against WHO risk thresholds.
Estimate calories burned across 18 activities and sports using MET values.
See exactly which plates to load on each side of the bar for a target weight.
Compare your total with Wilks 2020, DOTS and IPF GL points.
Estimate body fat from caliper skinfolds with the Jackson–Pollock method.
Quantify a session with TRIMP and session-RPE load.
Compare acute and chronic load to spot injury-risk spikes.
Estimate critical power, W′ and FTP from two field efforts.
Daily carbohydrate needs by training volume, plus pre-event loading.
Work out sweat rate and hydration needs from pre/post bodyweight.
Measure how fast your heart rate drops in the first minute after exercise.
Estimate LTHR from a 30-minute time trial and get Friel training zones.
Convert a working set at a given RPE into %1RM and an estimated one-rep max.
Score your max push-up test against ACSM age and sex norms.
Calculate BRI — body shape and visceral fat proxy — from waist and height.
Compute CTL, ATL and TSB form with the Banister fitness–fatigue model.