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Magent WHR Calculator
x402
Magent WHR Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Computes waist–hip ratio (WHR) from waist and hip circumference measurements using WHO 2011 published arithmetic
Price / call$0.005
Success—
StatusUnknown
How this service works
Waist–hip ratio from waist and hip circumference (WHO 2011 expert consultation). WHR = waist_cm / hip_cm after the same unit normalize; optional inches convert as cm = in * 2.54. Deterministic published arithmetic with citation. Not a medical device, body-fat diagnosis, or cardiovascular diagnosis; magent does not apply obesity or sex-specific cutoffs and does not measure the patient.
Output
Returns the computed waist-hip ratio (WHR) as a dimensionless decimal number (e.g. 0.85), derived by dividing waist circumference by hip circumference after normalizing both inputs to centimeters. Inputs in inches are automatically converted using cm = in × 2.54.
Example use cases
Fitness app body shape tracking
“My client has a waist of 34 inches and hips of 42 inches — can you calculate their waist-hip ratio for me?”
Clinical health screening workflow
“Compute the WHR for a patient with waist circumference 92 cm and hip circumference 105 cm.”
Research dataset anthropometric enrichment
“I have a waist measurement of 78 cm and hip measurement of 94 cm — what is the waist-hip ratio according to the WHO 2011 method?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/whrWhen to prefer
Choose this endpoint when you need a fast, deterministic WHR calculation based on the WHO 2011 published formula, especially when inputs may be in either centimeters or inches and automatic unit conversion is needed. Prefer it over general-purpose math tools when you want a citable, standards-based anthropometric computation without implementing the formula yourself.
Side effects
- Missing required measurement: if neither waist_cm nor waist_in is provided, or neither hip_cm nor hip_in, the request will fail
- Out-of-range values: waist or hip circumference outside 40–200 cm range may be rejected
- Conflicting units: providing both _cm and _in variants for the same measurement may cause ambiguity
- Non-numeric inputs will produce a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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