Health & FitnessFormula-based · Runs in your browser

Wilks Calculator

Calculate your Wilks Score to compare strength across different body weights.

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Calculation steps

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  1. 1

    Formula selected

    The calculator uses the following formula or method.

    Wilks score = lifted total × sex-specific Wilks coefficient evaluated from body weight.

  2. 2

    Values entered

    Your values are placed into the calculation.

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  3. 3

    Result calculated

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    Results will appear after a successful calculation.

  4. 4

    Answer formatted

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How it works

Calculate your Wilks Score to compare strength across different body weights.

Input query strings and outputs

Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.

Input query strings

4
  • ?bodyWeight= Body Weight

    Number · Optional · Default: 80

  • ?liftedWeight= Total Weight Lifted

    Number · Optional · Default: 400

  • ?gender= Gender

    Choice · Optional · Default: male

  • ?unit= Unit

    Choice · Optional · Default: kg

Outputs

1
  • result Result

    Text · Primary output

result contains the calculator’s complete rendered result area, including its visible result cards, tables, charts, and messages.

Compare strength across different body weights

Description

The Wilks Calculator is the gold standard for comparing the strength of powerlifters who weigh different amounts. In strength sports, a smaller person lifting a large weight is often considered more impressive than a much larger person lifting the same weight. The Wilks Formula uses a complex set of coefficients to “normalize” your total (Squat + Bench + Deadlift) into a single score, allowing for fair competition across weight classes.

Inputs

  • Gender: Male or Female (coefficients vary significantly by biological sex).
  • Body Weight: Your current weight at the time of the lift.
  • Total Weight Lifted: The sum of your best Squat, Bench Press, and Deadlift (one-rep maximums).
  • Unit: Choose between KG or LBS for all measurements.

Outputs

  • Wilks Score: Your normalized strength score.

Chart

  • N/A: This tool provides a precise clinical/competitive metric.

“Good to Know”

  • Pound-for-Pound: A Wilks score of 300 is considered good for a local competitor, 400 is elite, and 500+ is world-class territory.
  • The formula was created by Robert Wilks and is used by the International Powerlifting Federation (IPF).
  • While the IPF has moved toward new formulas (like IPF GL), the Wilks Score remains the most popular and widely understood metric in the global lifting community.

Examples

Example 1: Lightweight Specialist

  • Input:
    • Weight: 65 kg (Male), Total: 450 kg
  • Output:
    • Wilks Score: ~350.50

Example 2: Heavyweight Powerhouse

  • Input:
    • Weight: 110 kg (Male), Total: 650 kg
  • Output:
    • Wilks Score: ~378.12
    • (Shows how the much heavier lifter needs a significantly higher total to beat the lightweight’s score).

Example 3: Female Elite Lifter

  • Input:
    • Weight: 60 kg (Female), Total: 300 kg
  • Output:
    • Wilks Score: ~334.21
Sources
  • No external reference is listed for this calculator. Its formula and variable definitions are shown above.
Limitations
  • Health results are educational estimates, not a diagnosis or treatment recommendation. Individual circumstances may require a qualified clinician's assessment.