Wilks Calculator
Compare your powerlifting strength using four scoring systems on one page. Enter your sex, bodyweight and either your full total or individual squat, bench and deadlift numbers to get your Wilks score, updated Wilks 2, DOTS, and IPF GL points, plus an optional age-adjusted result.
Formula
Worked example
A 90 kg male lifter with a 500 kg total: the Wilks polynomial denominator is about 783.2, giving a coefficient of 0.6384 and a Wilks score of 319.2. The same lifter scores approximately 330 on Wilks 2, 320 on DOTS, and 77 on IPF GL.
What the Wilks score measures
Raw powerlifting totals favour heavier lifters because larger bodies can move more absolute weight. The Wilks score corrects for this by multiplying your squat-plus-bench-plus-deadlift total by a coefficient derived from a fifth-degree polynomial of your bodyweight in kilograms, with separate constant sets for men and women fitted to world-record data. The result is a single number that lets a 60 kg lifter and a 120 kg lifter be ranked on the same scale. That is how best-lifter awards at sanctioned meets are decided, and it is the figure most commonly quoted when gym lifters compare numbers across weight classes.
Wilks 2, DOTS and IPF GL: what changed in 2019-2020
The original 1994 Wilks formula remained the standard for over two decades, but research showed it slightly overvalued middle weight classes relative to very light or very heavy lifters. Three updated systems were introduced to address this. Wilks 2 (released in February 2020 by Robert Wilks) keeps the same polynomial structure but switches the numerator from 500 to 600 and recalibrates all coefficients against modern drug-tested data. DOTS (Dynamic Objective Team Scoring), developed by Tim Konertz and adopted by the USPA and USAPL from about 2019, uses a fourth-degree polynomial that performed best on coefficient-of-variation tests in the IPF's own 2020 evaluation. IPF GL Points (Goodlift Points, officially adopted by the International Powerlifting Federation in May 2020) take a fundamentally different approach: an exponential model with separate parameter sets for men and women, raw versus equipped, and full powerlifting versus bench-only, reflecting differences in how equipment assistance scales with bodyweight. All four formulas are calculated here so you can see them side by side.
Individual lifts versus the competition total
All four scoring systems operate on the competition total (best squat plus best bench press plus best deadlift). This calculator accepts either a pre-summed total or your three best single-lift results, and it sums them for you. If you are a bench-only competitor, select "Bench only" as the meet type; this changes only the IPF GL coefficient set because that is the only system that distinguishes the two meet types. The other three formulas treat the bench-press number as the total in the same polynomial they use for full powerlifting.
McCulloch age adjustment for juniors and masters
The McCulloch multiplier, widely used in masters powerlifting records and best-lifter awards, adjusts Wilks scores for age-related strength decline and junior development. Lifters between 24 and 39 years old use a multiplier of 1.0 (no adjustment). Juniors aged 14 to 22 receive a boost (the youngest, age 14, get 1.23) to reflect that young athletes have not yet reached peak strength. Masters from age 40 upward also receive a multiplier that increases with age (1.01 at 40, rising to about 2.1 by age 80). Toggle on the age adjustment to see how your score changes. The multiplier is applied only to the Wilks score because the McCulloch table was originally published alongside the Wilks formula; DOTS and IPF GL publish their own age-classification standards.
Wilks score benchmarks by level
| Wilks score | Level | Typical context |
|---|---|---|
| Under 150 | Beginner | New to barbell training |
| 150-249 | Novice | Regular gym training, first meets |
| 250-349 | Intermediate | Local and regional competition |
| 350-449 | Advanced | National-level competition |
| 450-499 | Elite | International competition |
| 500+ | World class | All-time great performances |
Rough strength tiers for raw powerlifting. Individual federations and weight classes vary.
Frequently asked questions
What is a good Wilks score?
It depends on the lifter, but as a rough guide: below 150 is beginner level, 150 to 249 is novice, 250 to 349 is intermediate (solid gym-level competitor), 350 to 449 is advanced (national-level), 450 to 499 is elite (international), and 500 or above is world class. These thresholds apply to raw lifters; equipped lifters typically score higher because gear assistance adds to the total.
What is the difference between Wilks, Wilks 2, DOTS and IPF GL?
All four convert a bodyweight-relative total to a single comparable score, but they use different mathematical models. Wilks (1994) uses a fifth-degree polynomial with a numerator of 500. Wilks 2 (2020) uses the same structure but a numerator of 600 and recalibrated coefficients. DOTS uses a fourth-degree polynomial tuned on modern drug-tested data and is the current standard for USPA and USAPL best-lifter awards. IPF GL uses an exponential curve rather than a polynomial and has separate coefficients for raw and equipped, and for full meet versus bench only. The IPF adopted it in May 2020. They give different numbers, so only compare scores calculated with the same formula.
Does the Wilks score depend on the units I use?
No. All four formulas are defined in kilograms, so bodyweight and total are converted to kg before any calculation. Entering values in pounds gives the same score as entering the equivalent in kilograms.
What does the McCulloch age adjustment do?
The McCulloch multiplier scales a Wilks score upward for very young lifters (juniors aged 14 to 22) and older masters (40 and above) to account for the fact that strength naturally peaks in the mid-20s to late-30s. A 50-year-old lifter with a Wilks score of 300 would receive a multiplier of about 1.15, giving an age-adjusted score around 345. Lifters aged 24 to 39 get a multiplier of exactly 1.0, so the adjustment has no effect for them.
Which formula should I use for competition?
It depends on your federation. The IPF and its affiliates use IPF GL Points for best-lifter awards. The USPA and USAPL use DOTS. Many non-IPF federations and gym challenges still use the original Wilks. Wilks 2 is used by Powerlifting Australia. This calculator shows all four so you can track whichever your federation requires and compare across systems.