Wilks Score Calculator
Calculate Your Relative Strength
The formula uses different coefficients for men and women.
Your weight on the day of the lift.
Sum of your max squat, bench press, and deadlift.
Select the unit for body weight and lifted weight.
Your Wilks Score
Intermediate Value (Wilks Coefficient): 0.0000
What is the Wilks Score Calculator?
The Wilks Score Calculator is a tool used in the sport of powerlifting to measure and compare the relative strength of lifters, regardless of their body weight or gender. Developed by Robert Wilks, the former CEO of Powerlifting Australia, the Wilks formula provides a standardized score that levels the playing field. Before its creation, it was difficult to determine who the “best” lifter was in a competition with multiple weight classes. Heavier lifters naturally lift more absolute weight, but this doesn’t necessarily mean they are stronger relative to their size. The Wilks Score Calculator solves this by multiplying a lifter’s total weight (the sum of their best squat, bench press, and deadlift) by a specific coefficient based on their body weight and gender.
The Wilks Score Formula and Explanation
The core of the Wilks score is a polynomial formula that generates a coefficient. This coefficient is then multiplied by the lifter’s total weight in kilograms to produce the final score.
The formula for the coefficient is:
Coefficient = 500 / (a + bx + cx² + dx³ + ex⁴ + fx⁵)
Where ‘x’ is the body weight of the lifter in kilograms. The variables ‘a’ through ‘f’ are constants that differ for male and female athletes. This ensures the powerlifting calculator accounts for physiological differences between genders.
| Variable | Meaning | Men’s Value | Women’s Value |
|---|---|---|---|
| x | Lifter’s Body Weight | Unit: kg | Unit: kg |
| a | Constant A | -216.0475144 | 594.31747775582 |
| b | Constant B | 16.2606339 | -27.23842536447 |
| c | Constant C | -0.002388645 | 0.82112226871 |
| d | Constant D | -0.00113732 | -0.00930733913 |
| e | Constant E | 7.01863e-06 | 4.731582e-05 |
| f | Constant F | -1.291e-08 | -9.054e-08 |
Practical Examples
Example 1: Male Lifter
- Inputs: Male, Body Weight: 93 kg, Total Lifted: 650 kg
- Units: Kilograms (kg)
- Calculation:
- First, the coefficient for a 93 kg male is calculated using the formula.
- Coefficient ≈ 0.6097
- Wilks Score = 650 kg * 0.6097 ≈ 396.31
- Result: A Wilks score of approximately 396.31, which is considered a very strong performance.
Example 2: Female Lifter in Pounds
- Inputs: Female, Body Weight: 135 lbs, Total Lifted: 750 lbs
- Units: Pounds (lbs)
- Calculation:
- First, convert weights to kg: Body Weight ≈ 61.23 kg, Total Lifted ≈ 340.19 kg.
- Calculate the coefficient for a 61.23 kg female.
- Coefficient ≈ 1.2599
- Wilks Score = 340.19 kg * 1.2599 ≈ 428.60
- Result: A Wilks score of approximately 428.60, indicating an international-level performance. This example highlights how a lifter with a lower absolute total can achieve a higher strength score.
How to Use This Wilks Score Calculator
Using this calculator is a straightforward process to find your relative strength score. Follow these steps:
- Select Your Gender: Choose between ‘Male’ or ‘Female’. The formula uses different variables for each.
- Enter Your Body Weight: Input your body weight as accurately as possible.
- Enter Your Total Weight Lifted: This is the combined total of your single heaviest successful attempt in the squat, bench press, and deadlift.
- Select Units: Choose whether you are inputting your weights in kilograms (kg) or pounds (lbs). The calculator will handle the conversion automatically.
- Interpret the Result: The calculator instantly displays your Wilks score. A higher score indicates greater relative strength. You can use this score to track your progress over time or compare your strength to other lifters. For an even more detailed analysis, check out our IPF points calculator.
Key Factors That Affect Wilks Score
Several factors can influence a powerlifter’s Wilks score:
- Training Experience: More experienced lifters typically have better technique and a higher strength base, leading to a better score.
- Body Composition: A lifter with more muscle mass at a given body weight will generally be stronger. A tool like a body fat calculator can help track this.
- Leverages: An individual’s limb lengths (e.g., short arms for bench press, long arms for deadlift) can provide biomechanical advantages in certain lifts.
- Technique and Efficiency: Perfecting lifting technique ensures that energy is transferred efficiently, allowing for heavier lifts and a higher total.
- Age: Strength potential often peaks in a lifter’s late 20s to 30s. Age-adjusted formulas exist but are not part of the standard Wilks system.
- Nutrition and Recovery: Proper diet and rest are critical for muscle repair and growth, which are fundamental to increasing strength. A TDEE calculator can help manage caloric intake for performance.
Frequently Asked Questions (FAQ)
1. What is a good Wilks score?
A good score is relative, but generally, 300 is solid for a local lifter, 400 is nationally competitive, and 500+ is considered elite or world-class for both men and women.
2. Is the Wilks formula still used?
While many federations still use it, some have transitioned to newer formulas like the DOTS score or IPF GL Points, which are believed to offer a more balanced comparison across all weight classes.
3. What is the difference between the Wilks score and DOTS score?
The DOTS (Dynamic Object Team Rating System) score is a newer formula designed to improve upon perceived imbalances in the Wilks system, particularly concerning super-heavyweight lifters. Many feel it provides a fairer strength ratio across all body weights.
4. Does the Wilks calculator account for age?
No, the standard Wilks formula does not factor in age. There are separate age-adjusted formulas (like the McCulloch coefficients), but they are not integrated into the main Wilks score.
5. Can I use this for a single lift?
Yes, while it’s designed for the three-lift total, you can input a single lift’s weight to see its corresponding Wilks score. This can be useful for comparing individual lift strength.
6. Why is my score different from another calculator?
There have been minor revisions to the formula over the years (e.g., Wilks 2.0 in 2020). This calculator uses the original, most widely recognized formula. Also, ensure you have selected the correct gender and units.
7. How do I improve my Wilks score?
The two primary ways are to increase your total lifted weight or to decrease your body weight while maintaining your strength. Improving technique and strength through consistent training is the most effective method. A one rep max calculator can help you plan your training loads.
8. Why does gender affect the score so much?
The formula uses entirely different coefficients for men and women to account for inherent physiological and hormonal differences that affect muscle mass and strength potential, allowing for a fair comparison of relative strength.
Related Tools and Internal Resources
Explore other calculators to optimize your training and nutrition:
- DOTS Score Calculator: Compare your strength using a modern alternative to the Wilks formula.
- IPF GL Points Calculator: Use the official scoring system of the International Powerlifting Federation.
- One Rep Max Calculator: Estimate your 1RM for various lifts to guide your training intensity.
- Body Fat Calculator: Track your body composition, a key factor in relative strength.
- TDEE Calculator: Determine your daily calorie needs to support your strength goals.
- Macro Calculator: Fine-tune your macronutrient intake for optimal performance and recovery.