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Ideal Weight Calculator

Estimate a healthy reference weight for your height using the Devine formula.

Inputs

cm
cm

Saved Scenarios

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Ideal Weight

61.4

Spark says

How it's calculated

Formula

IBWmen=50+2.3×(h−60)IBWwomen=45.5+2.3×(h−60)IBW_{men} = 50 + 2.3 \times (h - 60) \quad\quad IBW_{women} = 45.5 + 2.3 \times (h - 60)
h
— Height in inches

What is the Ideal Weight Calculator?

The Devine formula, originally developed for medication dosing, is widely used as a quick reference for 'ideal' body weight based on height alone.

How to use it

  1. 1 Select your gender.
  2. 2 Enter your height in centimetres.

Worked examples

170cm woman

Reference weight is about 63.9 kg.

Try it

Limitations

  • •Doesn't account for muscle mass, frame size, or age.
  • •A reference point, not a personal health target — BMI and body composition give a fuller picture.

Frequently asked questions

Is the Devine formula still medically used?

Yes, primarily to estimate dosing weight for certain medications — it's a rough population reference, not a personalized health target.

Sources & references