Wilks Coefficient Calculator

The Wilks coefficient is a multiplier applied to a powerlifter's squat-bench-deadlift total to compare lifters of different bodyweights and sex. The resulting Wilks score is what places lifters across weight classes in a meet.

The original Wilks (1994) was refit in 2020 using current world records. The IPF adopted the new coefficients to better reward heavier lifters, who were previously slightly under-rewarded. This calculator uses the IPF 2020 polynomial.

Score = total_kg × 600 / (A + B·bw + C·bw² + D·bw³ + E·bw⁴). The constants A–E differ between male and female lifters. The polynomial is evaluated at the lifter's bodyweight in kg, then multiplied by the total.

Common bands: < 100 untrained, 100–199 novice, 200–299 intermediate, 300–399 advanced, ≥ 400 elite. Competitive powerlifters at national level usually score 350–450; world-class men hit 500+. Bands apply to both sexes since Wilks already adjusts for sex.

Yes. Switch the units toggle to imperial (lb). The calculator converts to kg internally using 1 lb = 0.45359237 kg, then evaluates the IPF 2020 polynomial. The Wilks score is identical either way.

All three normalize across bodyweight. Wilks 2020 is the IPF's current official scoring system for raw classic. DOTS and GL points are alternatives used in some federations. For most lifters the rankings move only slightly between systems.