Work out cycling watts per kilogram instantly with clear inputs, formula shown and shareable results.
Power to weight is what decides climbing, because gravity scales with mass while air resistance does not. 280 W at 72 kg is 3.89 W/kg, a strong club level. On steep gradients speed is nearly proportional to W/kg, which is why professionals sustaining 6 W/kg climb roughly 50% faster than a rider at 4 W/kg.
Power to weight
W/kg = sustained power / body mass
Climbing
on steep gradients, speed is roughly proportional to W/kg
This is an estimate from population-average equations, not a medical or diagnostic assessment. Individual results vary with genetics, training history and technique. Seek advice from a qualified coach or clinician before making significant changes to training.
Yes - on the flat and in time trials, where aerodynamic drag dominates and total watts matter more than the ratio.
Whichever is more achievable without harming health. Losing 2 kg is often easier than finding 8 W, but only if it does not cost muscle or immune function.