Wilks Score Calculator
Compare powerlifting strength across body weights and between male and female athletes
What is the Wilks score?
The Wilks score is a coefficient used in powerlifting to compare the strength of competitors across different body weights and between male and female lifters. It was developed by Robert Wilks, former CEO of Powerlifting Australia, and adopted by most federations through the 2000s and 2010s.
The calculation applies a fifth-degree polynomial to body weight, with separate coefficient sets for men and women. Your total lifted (squat + bench press + deadlift, in kg) is multiplied by that coefficient to produce a single number that, in theory, lets a 60 kg lifter and a 120 kg lifter be ranked on the same scale.
How to read your score
- Below 250 — Novice lifter
- 250 to 349 — Intermediate
- 350 to 449 — Advanced
- 450 and above — Elite, competitive at national and international level
Top-level meets routinely produce Wilks scores between 450 and 600. A score above 500 is widely regarded as world-class, and the all-time records sit around 700 in tested federations and even higher in untested ones.
Wilks vs DOTS, IPF GL and the newer formulas
The IPF has since moved to its own IPF GL points formula, and the DOTS coefficient is used by USAPL and most non-IPF federations in North America. These newer formulas address two known weaknesses of the Wilks: it under-rewards super-heavyweight lifters and the female coefficients are now considered out of date. Despite this, Wilks remains the most widely understood number at amateur and gym level, and is still useful for tracking your own progression year over year.
One last point: the score is body-weight normalized, not drug-tested normalized. A Wilks of 500 on tested gear and a Wilks of 500 on full juice are very different feats. Federations report this separately — the calculator does not, and cannot. Use it to compare yourself to yourself first.
Sources
Studies and scientific publications this guide relies on.
- Vanderburgh PM, Batterham AM (1999). Validation of the Wilks powerlifting formula. Medicine & Science in Sports & Exercise. doi: 10.1097/00005768-199912000-00027
Validation indépendante de la formule de Wilks par Vanderburgh et Batterham, basée sur les détenteurs de records du monde et les meilleurs compétiteurs IPF 1996-1997. La formule corrige correctement la performance par le poids de corps pour le développé couché et le total, avec un biais résiduel modéré pour le soulevé de terre chez les athlètes lourds.
- Vanderburgh PM, Dooman C (2000). Considering body mass differences, who are the world's strongest women?. Medicine & Science in Sports & Exercise. doi: 10.1097/00005768-200001000-00029
Application de la pondération par allométrie et du score Wilks aux performances féminines en haltérophilie et powerlifting : confirme que la correction Wilks permet de comparer équitablement des compétitrices de poids différents et identifie les athlètes les plus fortes en valeur relative.
- Ferland PM, Allard MO, Comtois AS (2020). Efficiency of the Wilks and IPF Formulas at Comparing Maximal Strength Regardless of Bodyweight through Analysis of the Open Powerlifting Database. International Journal of Exercise Science. pmid: 33042369
Analyse à grande échelle (Open Powerlifting Database, ~500 000 performances) de l'efficacité comparative des formules Wilks et IPF pour neutraliser l'effet du poids de corps : la formule Wilks reste raisonnablement efficace mais montre un léger biais favorable aux poids moyens, justifiant l'adoption ultérieure de la formule IPF par la fédération internationale.
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