FitCalc

Wilks Calculator: Powerlifting Strength Comparison

A 180 lb male with a 1,000 lb powerlifting total (squat + bench + deadlift) has a Wilks score of approximately 310. Wilks scores: 300 = intermediate, 350 = advanced, 400 = elite, 450+ = world-class. The Wilks coefficient normalizes strength relative to body weight for fair cross-weight-class compari...

Calculate Your Wilks Score

Compare powerlifting strength across weight classes.

Male
Female

Wilks Score

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Total
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Classification
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Wilks Score Benchmarks

Wilks ScoreClassificationDescription
Below 200BeginnerNew to powerlifting
200-300IntermediateRegular training, 1-3 years
300-350AdvancedCompetitive local level
350-400EliteCompetitive national level
400-450World ClassInternational competitor
450+All-Time GreatRecord holder territory

Sample Wilks Scores by Body Weight (Male)

Body Weight300 Wilks Total350 Wilks Total400 Wilks Total
148 lbs (67 kg)846 lbs988 lbs1,129 lbs
165 lbs (75 kg)905 lbs1,056 lbs1,207 lbs
181 lbs (82 kg)963 lbs1,123 lbs1,284 lbs
198 lbs (90 kg)1,017 lbs1,187 lbs1,356 lbs
220 lbs (100 kg)1,082 lbs1,263 lbs1,443 lbs
242 lbs (110 kg)1,140 lbs1,330 lbs1,520 lbs

Wilks vs DOTS vs IPF GL

The Wilks formula (developed in the 1990s) has been supplemented by newer formulas:

- DOTS (2019): Updated curve fitting, used by some federations

- IPF GL (Goodlift Points): Official IPF formula since 2020

All three serve the same purpose. Wilks remains the most widely recognized and compared.

Wilks scores are based on mathematical formulas and competitive population data. They provide relative strength comparison, not absolute fitness assessment. Competition results may vary by federation, drug-testing status, and equipment (raw vs equipped). This is not medical advice.
Source: Wilks R. Wilks Formula. International Powerlifting Federation. Originally published circa 1994, periodically updated.

Sources

  1. International Powerlifting Federation — Official Wilks Coefficients
  2. Vanderburgh PM, Batterham AM (1999) — Validation of the Wilks powerlifting formula. Med Sci Sports Exerc 31:1811-1817

Frequently Asked Questions

What is a Wilks score?

A Wilks score is a normalized measure of powerlifting strength that allows comparison across body weights. It multiplies your powerlifting total (squat + bench press + deadlift, best of each) by a weight-dependent coefficient. Higher body weight lifters get a smaller coefficient, accounting for the fact that strength does not increase linearly with body weight. A Wilks of 300 is intermediate; 400+ is elite.

How is the Wilks coefficient calculated?

The Wilks coefficient is calculated using a 5th-degree polynomial equation: Coeff = 500 / (a + bx + cx^2 + dx^3 + ex^4 + fx^5) where x is body weight in kg and the constants a-f are different for males and females. The formula was developed by Robert Wilks and adopted by the International Powerlifting Federation.

What is a good Wilks score?

For recreational lifters, 300+ is a solid milestone indicating consistent training. A Wilks of 350 is competitive at local meets. 400+ is elite — typically seen at national championships. 450+ puts you in world-class territory. For context, the all-time highest Wilks scores exceed 600, achieved by lightweight lifters with extraordinary strength-to-weight ratios.

Is Wilks or DOTS better?

DOTS (2019) uses more recent competitive data and arguably produces fairer comparisons at extreme body weights (very light and super heavyweight). Wilks slightly favors lighter lifters according to some analyses. The IPF has adopted its own GL (Goodlift) formula. For practical purposes, all three are acceptable. Wilks remains the most widely recognized for historical comparisons.

Does Wilks apply to individual lifts or only the total?

Wilks is designed for the powerlifting total (squat + bench + deadlift combined). However, you can apply the Wilks coefficient to individual lifts for informal comparison. Some calculators offer this feature. Just multiply the individual lift weight by the same body-weight-dependent Wilks coefficient.

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