PORT CALCULATOR
Wilks
A precise tool.
What is the Wilks & How does it work?
The Wilks formula is a widely‑accepted method for comparing the strength of powerlifters of different body masses. By converting the total weight lifted into a dimensionless score, it enables fair ranking across weight classes and genders. The calculation starts with a gender‑specific coefficient that reflects how body weight influences performance. This coefficient is derived from a fifth‑order polynomial fitted to a large dataset of elite lifters. Once the coefficient is known, it is multiplied by the athlete’s total lift to produce the Wilks score. The higher the score, the stronger the lifter relative to their body weight.
C = \frac{500}{a + b\cdot W + c\cdot W^{2} + d\cdot W^{3} + e\cdot W^{4} + f\cdot W^{5}}
C = Wilks coefficient, W = body weight (kg), a,b,c,d,e,f = gender‑specific constants
Parameters
Result
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Frequently Asked Questions
What is the Wilks formula used for?
The Wilks formula is used to compare the strength of powerlifters by converting their total lifted weight into a dimensionless score, accounting for body mass.
How does the Wilks calculator work?
It uses gender-specific coefficients derived from elite lifter data to calculate a score that reflects performance relative to body weight.
Can I use the Wilks formula for any sport?
The Wilks formula is specifically designed for powerlifting and may not be suitable for other sports.
Why is it important to compare strength scores rather than raw weights?
Comparing scores adjusts for body mass differences, allowing fairer comparisons between lifters of various sizes.
Where can I find my gender-specific coefficient for the Wilks formula?
The coefficients are typically provided in official powerlifting resources or calculators that implement the Wilks formula.
How do I interpret my Wilks score once calculated?
A higher Wilks score indicates better strength relative to body weight, with scores varying based on gender and competition standards.
Is the Wilks formula applicable to both men and women?
Yes, the Wilks formula uses different coefficients for men and women to account for natural differences in strength between genders.
Results are for informational purposes only and do not constitute professional advice.