{
  "slug": "ipf-gl-points",
  "title": "IPF GL Points Calculator",
  "category": "Strength Training",
  "category_slug": "strength-training",
  "tier": 2,
  "summary": "Calculate IPF Goodlift points for raw powerlifting totals adjusted by body weight and sex.",
  "description": "This calculator computes IPF Goodlift (GL) points using the International Powerlifting Federation's official formula, which adjusts raw powerlifting totals by bodyweight and sex to enable fair comparison across weight classes. It requires total lifted (kg), bodyweight (kg), and sex, then applies sex-specific exponential coefficients to produce a dimensionless score where higher values indicate stronger relative performance. The formula is the IPF's standard metric for ranking raw (unequipped) powerlifters and is most applicable to competitive three-lift totals recorded under IPF rules.",
  "page_url": "https://fitmetriclab.com/en/tools/strength-training/ipf-gl-points/",
  "api_url": "https://fitmetriclab.com/api/tools/ipf-gl-points.json",
  "formula": {
    "id": "ipf_gl_points",
    "expression": "\\text{GL}_{raw} = \\frac{100}{a - b \\cdot e^{-c \\cdot B}} \\times T, \\quad (a,b,c) = \\text{sex-specific raw coefficients}",
    "variables": [
      {
        "symbol": "T",
        "description": "Total lifted in kg"
      },
      {
        "symbol": "B",
        "description": "Body weight in kg"
      },
      {
        "symbol": "s",
        "description": "Sex (male/female)"
      }
    ]
  },
  "inputs": [
    {
      "id": "total_kg",
      "label": "Total Lifted",
      "type": "number",
      "unit": "kg",
      "default": 500,
      "min": 50,
      "max": 1500,
      "step": 1
    },
    {
      "id": "bodyweight_kg",
      "label": "Body Weight",
      "type": "number",
      "unit": "kg",
      "default": 80,
      "min": 30,
      "max": 300,
      "step": 0.1
    },
    {
      "id": "sex",
      "label": "Sex",
      "type": "select",
      "unit": null,
      "default": 1,
      "options": [
        {
          "value": 1,
          "label": "Male"
        },
        {
          "value": 0,
          "label": "Female"
        }
      ]
    }
  ],
  "worked_example": {
    "inputs": {
      "total_kg": 500,
      "bodyweight_kg": 80,
      "sex": 1
    },
    "expected_output": "70.52"
  },
  "result_summary_template": "For a lifter with body weight of {bodyweight_kg} kg and total lifted of {total_kg} kg, the IPF Goodlift formula estimates {result} GL points.",
  "methodology": "Applies the IPF Goodlift formula: GL = (100 / (a − b × e^(−c × BW))) × Total, using raw (unequipped) sex-specific coefficients published by the International Powerlifting Federation. Male coefficients: a=1199.72839, b=1025.18162, c=0.00921. Female: a=610.32796, b=1045.59282, c=0.03048.",
  "sources": [
    {
      "label": "International Powerlifting Federation. IPF Goodlift Points Formula. IPF Technical Rules. 2019.",
      "url": "https://www.powerlifting.sport/"
    },
    {
      "label": "Vanderburgh PM, Batterham AM. Validation of the Wilks powerlifting formula. Med Sci Sports Exerc. 1999;31(12):1869-75.",
      "url": "https://pubmed.ncbi.nlm.nih.gov/10613437/"
    },
    {
      "label": "Stone MH, Fry AC, Ritchie M, et al. Injury potential and safety aspects of weightlifting movements. Strength Cond J. 1994;16(3):15-21.",
      "url": "https://journals.lww.com/nsca-scj/"
    }
  ],
  "faqs": [
    {
      "question": "What are IPF GL points?",
      "answer": "IPF Goodlift (GL) points are a body-weight-adjusted scoring system published by the International Powerlifting Federation. The formula converts absolute kilograms lifted into a normalized score, allowing lifters of different body weights to compare performances. Higher GL scores indicate greater relative strength for a given sex category."
    },
    {
      "question": "Can I use this calculator for equipped totals?",
      "answer": "This tool uses only the IPF's raw (unequipped) coefficients. Equipped totals—whether single-ply or multi-ply—will produce lower GL scores than the IPF's equipped-specific formulas would yield. For accurate equipped scoring, a tool that implements the equipped coefficient sets is required."
    },
    {
      "question": "How do male and female coefficients differ?",
      "answer": "The IPF publishes separate coefficient triplets (a, b, c) for male and female lifters to reflect observed differences in strength-to-body-weight scaling. Male coefficients are a=1199.72839, b=1025.18162, c=0.00921; female coefficients are a=610.32796, b=1045.59282, c=0.03048. These values were derived from regression analysis of competition data."
    },
    {
      "question": "Why does GL score matter more than absolute total?",
      "answer": "Absolute totals favor heavier lifters because larger body mass supports greater absolute strength. GL points adjust for body weight using an exponential model, recognizing that a 500 kg total at 60 kg body weight represents a different achievement than 500 kg at 120 kg. This enables cross-weight-class comparisons and best-lifter awards at meets."
    },
    {
      "question": "What is a competitive GL score?",
      "answer": "Competitive GL scores vary by experience level and federation depth. International elite raw lifters typically exceed 600 GL points for males and 500 for females. National-level performances often range from 500–600 (male) and 400–500 (female). Novice and intermediate lifters may score 300–500 and 250–400 respectively. These are descriptive ranges, not thresholds."
    }
  ],
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  "last_updated": "2026-04-22",
  "price": {
    "value": 0,
    "currency": "USD"
  },
  "runs_in_browser": true,
  "disclaimer": "Educational estimate produced from a published formula. Not medical, nutritional, or training advice. Calculations are deterministic — apply the formula to the inputs to reproduce the result."
}