Compare Your Strength Across Weight Classes with DOTS & IPF GL
Free Lifting Coefficients Calculator: Wilks, DOTS, and IPF GL methods to measure how strong you are. Compare powerlifting strength across different weight classes with accurate strength assessment.
Reference
| Body Weight | Performance |
|---|---|
| 59kg | 618.70kg |
| 66kg | 671.43kg |
| 74kg | 725.24kg |
| 83kg | 779.22kg |
| 93kg | 832.73kg |
| 105kg | 889.81kg |
| 120kg | 952.61kg |
| 150kg | 1057.57kg |
| 180kg | 1143.31kg |
(Each column from left to right: Wilks Score, DOTS Score 2020, IPF Score)
| Level | Squat | Bench Press | Deadlift | Total |
|---|---|---|---|---|
| World Class | 198/237/830 | 139/166/855 | 212/253/773 | 526/628/808 |
| Elite | 180/215/755 | 127/151/780 | 197/235/712 | 488/583/744 |
| Advanced | 151/180/631 | 106/127/653 | 172/205/611 | 421/503/630 |
| Intermediate | 125/149/521 | 87/104/534 | 147/173/504 | 359/429/525 |
| Novice | 100/120/417 | 69/83/424 | 122/146/411 | 295/352/416 |
| Beginner | 70/84/289 | 49/59/302 | 91/109/287 | 217/259/283 |
| Untrained | 51/61/208 | 38/46/233 | 73/87/214 | 177/211/216 |
How to use
Note: The Wilks coefficient is used to compare the strength of lifters across different weight classes. The higher the coefficient, the stronger the lifter relative to their body weight.
01
The original formula developed by Robert Wilks, CEO of Powerlifting Australia, for the IPF. It uses a polynomial formula with body weight to normalize performance across weight classes. Used widely until 2018, it calculates a coefficient that multiplies the total weight lifted to produce a score. While historically significant, studies showed it may slightly favor middle weight classes.
02
An updated version of the original Wilks formula released in 2020. This revision aims to better align men's and women's performances and improve balance between extreme and middle bodyweight classes. The formula was changed from 500/(polynomial) to 600/(polynomial) with entirely new coefficients. Currently used primarily by Powerlifting Australia.
03
DOTS (Dynamic Objective Team Scoring) replaced Wilks in many federations starting in 2019. Designed to be more accurate across all weight classes, with special attention to extreme weight categories. DOTS provides greater mathematical fairness and is currently used by USAPL and USPA for determining "best lifter" awards in competitions.
04
Adopted by the International Powerlifting Federation in 2019 to replace Wilks. This was the first IPF-specific formula that took into account not just bodyweight and gender, but also equipment type (raw/classic vs. equipped) and lift type (full meet vs. bench only). It was used for a short period before being replaced.
05
The newest formula adopted by the IPF in May 2020 after evaluating the previous IPF Points system. Based on extensive scientific research, it provides the most balanced comparison across all weight classes, genders, and competition types. The IPF GL parameters are set to be updated every four years to stay aligned with elite powerlifting performances. Currently the official standard for all IPF competitions worldwide.
The Wilks calculator helps determine how strong you are relative to other lifters regardless of bodyweight. It uses the Wilks coefficient to compare strength across different weight classes and genders, allowing for fair comparison between lifters of different sizes by accounting for the fact that heavier lifters can generally lift more weight.
Each lifting coefficient has its strengths. The original Wilks was the standard for many years, DOTS improved accuracy at extreme weight classes, and IPF GL Points is the newest formula that accounts for more variables including equipment type. For official IPF competitions, the IPF GL coefficient is now used as the most comprehensive measurement.
Your strength level (Beginner, Intermediate, Advanced, etc.) is determined by comparing your IPF Points score to statistical benchmarks derived from competitive powerlifting data. These benchmarks represent typical progression through training experience.
Yes, especially for IPF Points. Equipped lifting (using supportive gear like squat suits or bench shirts) allows lifters to move more weight, so the formulas account for this when calculating scores.
You should recalculate your Wilks, DOTS or IPF GL coefficients whenever your body weight changes significantly or when your lifting performance improves. Many lifters track their coefficients every 3-6 months to measure progress.