/wellness namespace · APlicious

BMI calculator API — metric or imperial, with WHO classification

GET /wellness/bmi with weight, height, and unit to get BMI value, WHO classification (Underweight / Normal / Overweight / Obese), and the healthy weight range — in one call.

19wellness endpoints

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GET /api/v1/wellness/bmi

const res = await fetch(
  'https://aplicious.com/api/v1/wellness/bmi?weight=70&height=175&unit=metric',
  { headers: { 'X-API-Key': 'lapi_live_••••' } }
);
const { data } = await res.json();
// { bmi: 22.9, classification: "Normal weight",
//   healthy_weight_range: { min_kg: 56.7, max_kg: 77.2 } }

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What's included in /wellness

Metric and imperial

Pass unit=metric (kg, cm) or unit=imperial (lbs, inches) — no manual conversion required.

WHO classification

Returns the standard category: Underweight, Normal weight, Overweight, or Obese (Class I/II/III).

Healthy weight range

Returns the min and max weight for a Normal BMI at the given height — useful for 'target weight' displays.

19 wellness endpoints, one key

Pair BMI with /wellness/calorie-needs, /wellness/water-intake, and /wellness/macro-split for a complete health dashboard.

No auth setup beyond API key

One header, one GET request — no OAuth, no user accounts, no external health API credentials.

Start using the BMI calculator API today

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Frequently asked questions

What units are accepted?

metric (weight in kg, height in cm) or imperial (weight in lbs, height in inches). Pass unit=metric or unit=imperial.

Is BMI accurate for athletes?

BMI doesn't distinguish muscle from fat — a high BMI in muscular people may be incorrectly classified. Consider pairing with /wellness/body-fat for a fuller picture.

What other wellness endpoints are available?

19 total: calorie-needs, water-intake, sleep-cycle, macro-split, ovulation, body-fat, ideal-weight, stress, and more.

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