Your Wilks Score — compare strength across body weights.
Enter your powerlifting total (squat + bench + deadlift) and body weight to get your Wilks coefficient and IPF GL Points — the two most widely used formulas for comparing strength regardless of body size.
Your data
Your result
How it's calculated
One polynomial, unlimited body weight comparisons
The Wilks Score normalizes a powerlifter's SBD total (squat + bench + deadlift) against body weight using a 6th-degree polynomial so athletes of any size can be ranked on the same scale. For example, a 90 kg male with a 600 kg total scores approximately 383 Wilks points (advanced level). The IPF GL Points formula (2019) uses an exponential model and is the current official coefficient at IPF-sanctioned events.
The original Wilks formula was created by Robert Wilks of Powerlifting Australia. It was updated in 2020 with new polynomial coefficients derived from a larger dataset of IPF world records, correcting a known bias that favoured heavier lifters. Despite the IPF adopting the GL Points formula in 2019, the updated Wilks remains widely used across national federations and online communities because of its familiarity and historical continuity.
poly = a + b·x + c·x² + d·x³ + e·x⁴ + f·x⁵
IPF GL = 100 × Total (kg) ÷ (A − B·e−C·BW)
- 1Convert all weights to kg (if entering lb)—
- 2Sum the three lifts: squat + bench + deadlift—
- 3Evaluate the Wilks polynomial at your body weight—
- 4Multiply total by 500 and divide by the polynomial—
- 5Calculate IPF GL Points with the exponential formula—
Understand the terms
- Wilks coefficient
- A bodyweight-adjusted score for comparing powerlifting performance across weight classes. Based on a 6th-degree polynomial derived from competition data. Updated in 2020 with revised coefficients.
- IPF GL Points
- The official formula adopted by the International Powerlifting Federation in 2019. Uses an exponential model (GL = Good Lift) instead of a polynomial. Currently the standard at all IPF-sanctioned competitions.
- SBD total
- The sum of the best successful attempts in Squat (S), Bench press (B) and Deadlift (D). The basis for both Wilks and IPF GL calculations in powerlifting.
- Federation
- Powerlifting governing body that sets rules and records. Major federations include the IPF (drug-tested), USPA, WRPF, and others. Different federations may use different coefficient formulas.
Frequently asked questions — Wilks Score
What is a good Wilks score?
What is the difference between Wilks and IPF GL Points?
How is Wilks score calculated?
Is Wilks still used in powerlifting?
Can I compare Wilks scores across weight classes?
📚 Learn more — official sources
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About the Wilks Score Calculator
The Wilks coefficient was created by Robert Wilks of Powerlifting Australia to give powerlifters a single number that represents strength independent of body weight. The formula uses a 6th-degree polynomial whose coefficients were re-derived in 2020 using a larger dataset of IPF world records, correcting a known bias that the original 1997 formula had toward heavier athletes.
The IPF GL Points formula replaced Wilks as the official IPF metric in 2019. It uses an exponential model (A − B·e−C·BW) and is considered slightly more accurate for lighter weight classes. This calculator computes both simultaneously so you can compare your performance across both systems and track your progress over time.