Wilks Calculator

Wilks Calculator is used to calculate the Wilks score, which measures a powerlifter's strength. It is calculated using the total weight lifted and body weight.

Body Weight :
Weight Lifted :
Gender :



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How to use this Wilks Calculator Tool?

How to use Yttags's Wilks Calculator?

  • Step 1: Select the Tool
Wilks Calculator Step 1
  • Step 2: Enter The Following Options And Click On Calculate Butoon
Wilks Calculator Step 2
  • Step 3: Check Your Wilks Calculator Result
Wilks Calculator Step 3
Wilks Score = Total Lifted Weight × Coefficient

The Wilks Calculator is used to calculate the strength level of lifters against each other relative to bodyweight.

The Wilks formula

Original Wilks Coefficient = 500 / (a + bx² +cx³ +dx⁴ +ex⁵ +fx⁶)

Wilks Formula for Men: 

Wilks Score = TWL * 500 / (a + b * BWT2 + c * BWT3 + d * BWT4 + e * BWT5 + f * BWT6)

Where: TWL is the total weight lifted [kg], BWT is the body weight of the lifter [kg],

Wilks Formula for Women: 

Wilks Score = TWL * 500 / (a + b * BWT2 + c * BWT3 + d * BWT4 + e * BWT5 + f * BWT6)

Where: TWL is the total weight lifted [kg], BWT is the body weight of the lifter [kg],

Coefficients for men are:

  • a = -216.0475144
  • b = 16.2606339
  • c = -0.002388645
  • d = -0.00113732
  • e = 7.01863E-06
  • f = -1.291E-08

Coefficients for women are:

  • a = 594.31747775582
  • b = -27.23842536447
  • c = 0.82112226871
  • d = -0.00930733913
  • e = 4.731582E-05
  • f = -9.054E-08

Wilks calculator – Example step by step


  • Name: Virat
  • Bodyweight: 102 kg
  • Max weight lifted: 205 kg
  • Lifting class: Heavy class


  • Name: Jolly
  • Bodyweight: 53 kg
  • Max weight lifted: 99 kg
  • Lifting class: Light class

How do we know whether Virat or Jolly has a better power-to-weight ratio and why?

Virat’s Wilks coefficient: 123.80

Jolly’s Wilks coefficient: 121.61

Virat’s Wilks coefficient is higher because his power-to-weight ratio is better than Jolly’s.

If you want to link to Wilks Calculator page, please use the codes provided below!

Wilks Calculator

FAQs for Wilks Calculator

What is a Wilks Calculator?
A Wilks Calculator is a tool used in powerlifting to determine the relative strength of an individual across different body weights. It employs a formula to normalize lifting performance, facilitating fair comparisons between lifters of varying sizes in competitions.
How does the Wilks Formula work?
The following equation is used to calculate the Wilks coefficient: where x is the body weight of the lifter in kilograms. The total weight lifted (in kg) is multiplied by the coefficient to find the standard amount lifted, normalised across all body weights.
What is Wilks measured in?
Calculate the Wilks Score for your gender/bodyweight in lb/kg. The Wilks Score (also known as Wilks Coefficient) measures your strength in powerlifting against other powerlifters with different bodyweights across both genders.
What is a good Wilks total?
So I decided to program a wilks calculator for quick use, rather than needing to go search for one on the internet. For anyone curious about specific scoring, a score of 300+ is very strong for the average gym goer, and is about normal for a powerlifter.
What are the weight categories for powerlifting?
Women: 47 kg, 52 kg, 57 kg, 63 kg, 69 kg, 76 kg, 84 kg, 84 kg+ Men: 59 kg, 66 kg, 74 kg, 83 kg, 93 kg, 105 kg, 120 kg, 120 kg+