Wilks Calculator
Calculate wilks with our free tool. See your stats, compare against averages, and track progress over time. Get results you can export or share.
Formula
Wilks = Total x (500 / (a + b*BW + c*BW^2 + d*BW^3 + e*BW^4 + f*BW^5))
Where Total is squat+bench+deadlift, BW is bodyweight in kg, and a through f are gender-specific polynomial coefficients.
Worked Examples
Example 1: Male 83 kg Class
Problem: An 82.5 kg male lifter totals 600 kg. Calculate his Wilks score.
Solution: Wilks coefficient at 82.5 kg (male) = 0.6910\nWilks = 600 x 0.6910 = 414.60\nLevel: Advanced\nBW ratio: 600/82.5 = 7.27x
Result: Wilks: 414.60 | Level: Advanced | 7.27x BW
Example 2: Female 63 kg Class
Problem: A 62.8 kg female lifter totals 400 kg.
Solution: Wilks coefficient at 62.8 kg (female) = 1.0285\nWilks = 400 x 1.0285 = 411.40\nLevel: Advanced\nBW ratio: 400/62.8 = 6.37x
Result: Wilks: 411.40 | Level: Advanced | 6.37x BW
Frequently Asked Questions
What is the Wilks score and how is it calculated?
The Wilks score is the most widely used coefficient in powerlifting for comparing lifters across different bodyweight classes. It is calculated by multiplying a lifter's total (squat plus bench plus deadlift) by a bodyweight-dependent coefficient derived from a fifth-degree polynomial. The formula uses six coefficients that differ for male and female lifters, producing a normalized score that allows fair comparison. A Wilks score of 300 is roughly intermediate level, 400 is advanced, and 500 or above represents elite-level strength. The system was developed by Robert Wilks and has been used by the International Powerlifting Federation since the 1990s.
What is a good Wilks score for my level?
Wilks score benchmarks vary by experience level. For male lifters: below 200 is untrained to beginner, 200 to 300 is novice, 300 to 400 is intermediate, 400 to 500 is advanced, and above 500 is elite. For female lifters, the same general ranges apply though achieving high scores is often considered more impressive due to smaller sample sizes at the elite level. At local powerlifting meets, the average Wilks tends to be around 300 to 350. At national competitions, competitors typically score 400 or higher. World-class lifters regularly achieve Wilks scores above 500, with the all-time highest scores exceeding 700.
How does the Wilks coefficient work mathematically?
The Wilks coefficient uses a fifth-degree polynomial to create a bodyweight-dependent multiplier. The formula is Coefficient = 500 / (a + b*BW + c*BW^2 + d*BW^3 + e*BW^4 + f*BW^5), where a through f are gender-specific constants derived from regression analysis of world record performances across all weight classes. This polynomial was designed so that a given Wilks score represents approximately equivalent performance regardless of bodyweight. The denominator curve is shaped so that lighter lifters receive a higher coefficient (boosting their score) and heavier lifters receive a lower coefficient, compensating for the natural advantage of greater body mass.
What is the difference between Wilks and DOTS scores?
Both Wilks and DOTS are bodyweight-adjusted scoring systems for powerlifting, but they use different mathematical models and datasets. The DOTS (Dynamic Objective Team Scoring) system was developed more recently as an improvement over Wilks, using a fourth-degree polynomial rather than fifth-degree. DOTS aims to better account for performance differences at extreme bodyweights where the original Wilks formula can become less accurate. In practice, the two scores are usually very similar for lifters in middle weight classes but can diverge for very light or very heavy athletes. Many federations now offer both scores, and the IPF uses their own GL points system.
How do I improve my Wilks score effectively?
Improving your Wilks score requires increasing your powerlifting total relative to your bodyweight. There are two main strategies: increase your total while maintaining bodyweight, or reduce bodyweight while maintaining your total. Most lifters benefit from focusing on bringing up their weakest lift, as this typically offers the most room for improvement. Optimizing body composition by reducing body fat while maintaining or building muscle mass can also boost your Wilks significantly. Training periodization with dedicated hypertrophy, strength, and peaking blocks produces the most consistent long-term improvements in Wilks score across all experience levels.
Is the Wilks formula still accurate and relevant?
The original Wilks formula from the 1990s has faced criticism for becoming less accurate as the sport has evolved and more data has become available. Some critics argue it overvalues middle-weight lifters and undervalues those at the extremes. The Wilks 2 (2020 revision) addressed some of these concerns with updated coefficients. Alternative systems like DOTS, IPF GL Points, and Goodlift Points have been developed to improve accuracy. However, Wilks remains the most widely recognized and used system, making it valuable for historical comparisons and competitions that still use it. Many lifters track both Wilks and DOTS for a more complete picture.