Calculate your Wilks coefficient to compare strength across different body weights. Essential tool for competitive powerlifters and strength athletes.[web:225][web:229]
Enter your lifts to calculate your Wilks score and see how you compare to powerlifting standards.
The Wilks Formula, developed by Robert Wilks (CEO of Powerlifting Australia), is a method by which the strength of a powerlifter is measured against the performances of other lifters of different bodyweights.[web:231] The Wilks formula compares lifting strength across different body weights by applying a coefficient that accounts for the advantage heavier lifters have.[web:229]
The total weight lifted (in kg) is multiplied by the coefficient to find the standard amount lifted, normalized across all body weights.[web:228] The lifter with the highest resulting Wilks score is considered the "best lifter" regardless of bodyweight class.[web:227][web:231]
Higher Wilks score = stronger relative to body weight. A 150 lb lifter totaling 1200 lbs may have a higher Wilks score than a 220 lb lifter totaling 1400 lbs, demonstrating superior pound-for-pound strength.[web:229]
The Wilks coefficient is calculated using a complex polynomial equation:[web:225][web:228]
Coefficient = 500 / (a + bx + cx² + dx³ + ex⁴ + fx⁵)[web:225][web:228]
Where:
Wilks Score = Total Weight Lifted × Wilks Coefficient[web:229][web:231]
The formula was updated in March 2020 to allow for a rebalancing of coefficients, with men and women's performances better aligned and the extreme bodyweight classes brought into better balance with the middle bodyweight classes.[web:225] The updated version uses 600 instead of 500 in the numerator.[web:225]
Understanding where your Wilks score falls helps gauge your strength level relative to competitive powerlifters.[web:229]
| Level | Wilks Score | Description |
|---|---|---|
| Beginner | 200-300 | New to powerlifting, learning form and technique |
| Novice | 300-350 | 6-12 months consistent training |
| Intermediate | 350-400 | Respectable for recreational lifters, 1-3 years experience |
| Advanced | 400-450 | Competitive at local/regional level, 3-5 years training |
| Elite | 450-500 | Competitive at national level, exceptional strength |
| World Class | 500+ | Elite competitive level, world championship contender |
Your powerlifting total is the sum of your best squat, bench press, and deadlift.[web:229] The calculator automatically adds these three lifts.
The calculator multiplies your total by your bodyweight-specific Wilks coefficient.[web:231] Compare your score to the standards table to see your relative strength level.
Male lifter: 75 kg bodyweight
Squat: 180 kg | Bench: 120 kg | Deadlift: 220 kg
Total: 520 kg
Wilks Coefficient: ~0.77 (approximate for 75 kg male)
Wilks Score: 520 × 0.77 = 400 (Advanced level)[web:229][web:231]
Some federations now use Wilks2 or IPF Points, which are refinements of the original Wilks formula with updated coefficients.[web:225] The 2020 update improved balance across weight classes and better aligned male and female performances.[web:225]
The IPF (International Powerlifting Federation) developed IPF Points as an alternative to Wilks, with slightly different coefficients optimized for their competition data. Both serve the same purpose: fair comparison across bodyweights.
The Dots formula is another alternative that some federations prefer. It uses different mathematical approaches but achieves similar goals.
Wilks remains the most widely recognized standard globally and is still used by World Powerlifting and Powerlifting Australia.[web:231] Check your specific federation's rules for official competitions, but Wilks is excellent for general comparison and tracking progress.
The most direct way to improve your Wilks score is increasing your powerlifting total through progressive overload, optimal programming, and consistent training.
Lighter lifters with the same total have higher Wilks scores due to better pound-for-pound strength. However, don't sacrifice muscle mass—focus on building strength while maintaining a lean, powerful physique.
A Wilks score of 350+ is respectable for recreational lifters and indicates solid intermediate strength.[web:229] 400+ is advanced and competitive at local meets. 450+ is elite and competitive at national level. 500+ is world-class, representing the top percentile of all powerlifters globally.
Yes, the Wilks formula is used widely, including by World Powerlifting and Powerlifting Australia.[web:231] While some federations now use Wilks2, IPF Points, or Dots, the original Wilks remains the most widely recognized standard for comparing lifters across bodyweights.[web:225]
The Wilks coefficient is calculated using a polynomial equation based on your bodyweight and gender, then multiplied by your total weight lifted (squat + bench + deadlift).[web:228][web:229] The formula is: Wilks Score = Total Lifted × Wilks Coefficient, where the coefficient equals 500 / (a + bx + cx² + dx³ + ex⁴ + fx⁵).[web:225]
The Wilks formula is designed to create fair comparison across all bodyweights by accounting for the natural advantage heavier lifters have in absolute strength.[web:229] Lighter lifters need less total weight for the same Wilks score, but this reflects their superior pound-for-pound strength relative to bodyweight.[web:231]
Absolutely! Wilks score is excellent for tracking your progress over time, especially if your bodyweight changes. Unlike absolute totals, Wilks accounts for bodyweight fluctuations, giving you a normalized measure of strength improvement.
Both formulas serve the same purpose—comparing strength across bodyweights—but use different mathematical approaches and coefficients. IPF Points was developed by the International Powerlifting Federation as their preferred standard, while Wilks remains more widely used globally.[web:231] The scores aren't directly comparable, but both achieve fair bodyweight-adjusted comparisons.