Plyometric power, swimming efficiency, and exercise equivalence calculators. Browse our free exercise science tools below — all calculators are instant, accurate, and require no sign-up.
Dog Walking Benefits Calculator — Calculate calories burned, steps taken, distance, and cardio minutes from dog walking. Includes benefits for you and your dog by pace and terrain.
Plyometric Power Calculator — Estimate peak and average power from your vertical jump using the Lewis and Sayers formulas. Compare power output across body weights.
Smoking Recovery Timeline Calculator — Track your body's recovery after quitting smoking. See cigarettes avoided, money saved, life regained, and health milestones from 20 minutes to 15 years.
Swimming SWOLF Calculator — Calculate your SWOLF score (swimming efficiency metric) from lap time and stroke count. Track efficiency by stroke type and pool length.