Wilks Score Calculator
Calculate classic powerlifting strength coefficient normalized for body weight
Total: 520 kg lifted at 82 kg bodyweight
Mathematical Formula & Scientific Methodology
Formula: Robert Wilks 5th-Order Polynomial Formula
Score = Total × 500 / (a + b·w + c·w² + d·w³ + e·w⁴ + f·w⁵)Historically used by the International Powerlifting Federation (IPF) to determine the best pound-for-pound lifter across weight classes.
Model Assumptions
- Raw or single-ply powerlifting total
Variables & Standard Units
| Symbol | Physiological Meaning | Unit |
|---|---|---|
| w | Body weight in kilograms | kg |
| Total | Combined sum of best Squat, Bench Press, and Deadlift | kg |
Scientific Limitations
- Mild mathematical bias favoring middleweight and ultra-heavyweight lifters led to newer DOTS and IPF GL standards
Peer-Reviewed Scientific Citations
Powerlifting coefficient standard for bodyweight normalization (2020)
Wilks R (1994, revised 2020 coefficients) — International Powerlifting Federation Technical Rules
Key Finding: Polynomial coefficient standard normalizing powerlifting total lifts across male and female bodyweight categories.
Frequently Asked Questions
Related Calculators & Next Steps
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