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Magent Ideal Body Weight (Devine Formula) Calculator
x402
Magent Ideal Body Weight (Devine Formula) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Calculates Devine ideal body weight (IBW) and Adjusted Body Weight (AdjBW at 0.4 factor) from sex, height, and actual weight using the published Devine formula with citation.
Price / call$0.005
Success—
StatusUnknown
How this service works
Devine ideal body weight and 0.4 adjusted body weight from height, sex, and actual weight. Deterministic published formula with citation; not a dosing recommendation.
Output
Returns the Devine ideal body weight (IBW) in kilograms, the adjusted body weight (AdjBW) calculated at the 0.4 factor in kilograms, and a citation to the original published Devine formula. The endpoint is deterministic and non-diagnostic — it is not a dosing recommendation.
Example use cases
ICU medication weight-based dosing reference
“My patient is a female, 162 cm tall, and her actual weight is 95 kg. Can you calculate her Devine ideal body weight and the 0.4 adjusted body weight for clinical reference?”
Pharmacist verifying renal dosing weight
“I need the Devine IBW and adjusted body weight for a male patient who is 68 inches tall and weighs 260 pounds — we're reviewing his dosing weights.”
Obesity medicine baseline assessment
“Can you run the Devine formula for a female patient, 155 cm, 110 kg actual weight, and give me both her ideal body weight and adjusted body weight?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/ibw_devineWhen to prefer
Choose this endpoint when you need a deterministic, citable Devine IBW calculation — especially when a 0.4 adjusted body weight is also required for pharmacokinetic or clinical reference. Prefer over general BMI calculators when the downstream need is IBW-specific (e.g., ventilator tidal volume targets, renal dosing weight estimates). It is not a dosing recommendation and should not replace clinical judgment.
Side effects
- Missing required 'sex' parameter returns an error
- Neither height_cm nor height_in provided results in an error
- Providing a height at or below 60 inches (152.4 cm) may produce a zero or negative IBW per the Devine formula logic
- Non-numeric or out-of-range height/weight values cause validation errors
- Both weight_kg and weight_lb may be omitted if AdjBW is not needed, but absence may affect AdjBW output
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/ibw_devine",
"count": 2,
"items": [
{
"sex": "male",
"ibw_kg": 73,
"formula": "devine_ibw_adjbw",
"adjbw_kg": 79.8,
"citation": {
"id": "devine-1974",
"doi": null,
"title": "Gentamicin therapy",
"source": "Drug Intell Clin Pharm. 1974;8:650-655",
"authors": "Devine BJ"
},
"height_cm": 177.8,
"height_in": 70,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"adjbw_factor": 0.4,
"actual_weight_kg": 90,
"formula_expression": "IBW_kg = 50 (male) or 45.5 (female) + 2.3 * (height_in - 60); AdjBW_kg = IBW_kg + 0.4 * (TBW_kg - IBW_kg) when TBW > IBW, else TBW_kg"
},
{
"sex": "male",
"ibw_kg": 73,
"formula": "devine_ibw_adjbw",
"adjbw_kg": 79.8,
"citation": {
"id": "devine-1974",
"doi": null,
"title": "Gentamicin therapy",
"source": "Drug Intell Clin Pharm. 1974;8:650-655",
"authors": "Devine BJ"
},
"height_cm": 177.8,
"height_in": 70,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"adjbw_factor": 0.4,
"actual_weight_kg": 90,
"formula_expression": "IBW_kg = 50 (male) or 45.5 (female) + 2.3 * (height_in - 60); AdjBW_kg = IBW_kg + 0.4 * (TBW_kg - IBW_kg) when TBW > IBW, else TBW_kg"
}
]
}
}Tags
x402
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