Work out sinclair coefficient instantly with clear inputs, formula shown and shareable results.
The Sinclair coefficient answers what an Olympic weightlifter would total if they were the same relative strength but at the heaviest class body weight. It is 10^(A log10(bw/b)^2), reaching 1.0 at the reference weight and rising for lighter lifters. A 250 kg total at 85 kg becomes about 295 kg Sinclair for a man, which is how the best-lifter award is decided.
Sinclair coefficient
coeff = 10^(A x log10(bodyweight / b)^2), 1.0 above b
Sinclair total
total x coefficient
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.
Because the formula scales everyone up to the reference body weight, and lifters already at or above it need no adjustment.
No - it is specific to Olympic weightlifting and updated each Olympic cycle. Powerlifting uses Wilks, DOTS or IPF GL.