BMI Calculator API

Adult body mass index with the WHO category and the healthy weight range for the height, in metric or imperial units.

POST /api/v1/tools/bmi-calculatorMCP bmi_calculatorCalculators

Calculate adult body mass index from height and weight in metric or imperial units, with the WHO category and the weight range for a normal BMI.

Input

Send these as a JSON object. Unknown fields are rejected.

units: metric: weight in kg, height in cm. imperial: weight in lb, height in feet plus inches. (string, one of metric, imperial, default "metric")
weight: Body weight: kilograms (metric, 10 to 650) or pounds (imperial). (number, 0 to …, required)
height: Metric only: height in centimetres (50 to 280). (number, 0 to …)
feet: Imperial only: whole feet of height. (number, 0 to 9)
inches: Imperial only: inches on top of the feet (or total height in inches if feet is omitted). (number, 0 to …)

Try it in the browser JSON Schema Get an API key

curl https://pithlab.com/api/v1/tools/bmi-calculator \n  -H "Authorization: Bearer $PITHLAB_KEY" \n  -H "Content-Type: application/json" \n  -d '{"units":"metric","weight":70,"height":175}'

Example response

{
  "ok": true,
  "result": {
    "bmi": 22.9,
    "category": "Normal weight",
    "categoryRange": "18.5 – 24.9",
    "healthyWeightMin": 56.7,
    "healthyWeightMax": 76.3,
    "weightUnit": "kg",
    "text": "BMI 22.9: Normal weight (WHO adult range 18.5 – 24.9)"
  }
}