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Clinical calculator

Ideal body weight

Devine ideal body weight in kg from height and sex — used for dosing, ventilator settings and as a nutrition reference.

Inputs
Ideal body weight
0.0
kg (Devine)
For reference only. An educational aid using the Devine formula, not a substitute for clinical judgement. The Devine formula is defined for heights above 5 feet (152 cm).

Frequently asked questions

Which ideal body weight formula is used?

The Devine formula: 50 kg (men) or 45.5 kg (women) + 2.3 kg for each inch of height over 5 feet (60 inches). Height entered in cm is converted for you.

What is ideal body weight used for?

IBW is used for some drug dosing, ventilator tidal-volume settings and as a reference in nutrition and renal calculations.

Run your whole hospital, not just this tool.

Inside OlivHealth, patient measurements sit on the record with your clinical forms, so reference weights are consistent for the whole team.