How many watts was your workout?
Enter the athlete, the movements and the finishing time. Every rep becomes joules of work against gravity; joules ÷ seconds = watts.
How it works
Each rep's work is 9.81 × [M × (a·H + b) + L × (c·H + d)] joules, where H is height (m), M is body mass (kg), and L is load (kg). The coefficients come from average body-segment lengths (Drillis & Contini) and masses (Clauser et al., 1969) — for example, a pull-up lifts your whole body one arm-length (0.332 H), a thruster adds a full squat to a press.
Rowers and SkiErgs use the Concept2 pace or calorie formulas; machines that show watts use that number directly. Running is estimated from distance (≈1 J/kg/m of mechanical work) plus elevation gain.
Lowering, holding, isometric work and horizontal movement score zero, so heavy grinding work is under-credited relative to how it feels. Scores are most useful for comparing workouts and tracking the same athlete over time.
Reference: a 1.75 m, 68 kg athlete doing 21-15-9 thrusters (43 kg) and pull-ups in 5:00 scores ≈160 W; a 2 km row in 8:00 ≈203 W; a flat 5 km in 25:00 ≈227 W.