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Ideal body weight calculator

Estimate ideal body weight from height and sex with the Devine formula, for adults of five feet and over.

Height

Your result appears here as you type.

The Devine formula

  • Men: 50 kg + 2.3 kg for each inch over five feet.
  • Women: 45.5 kg + 2.3 kg for each inch over five feet.

What it is for

The formula was created for clinical calculations, not as a personal weight goal. Healthy weight is a range, so the BMI calculator is a better guide for most people.

Last checked 31 October 2026. This calculator gives an estimate for information. It is not a diagnosis or medical advice, so talk to a doctor about your result.

References: Devine BJ. Gentamicin therapy. Drug Intell Clin Pharm 1974;8:650–5.

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Common questions

Still unsure? Send us the question and a person — not a bot — will answer it.

What is the ideal weight for a 5 foot 6 inch man?

By the Devine formula, 50 + (2.3 × 6) = 63.8 kg.

What is the ideal weight for a 5 foot 2 inch woman?

By the Devine formula, 45.5 + (2.3 × 2) = 50.1 kg.

Try it with next week’s patients

Plans start at PKR 4,000 a month, billed in rupees, with setup and staff training included. Bring over next week’s patients and see whether the evening session runs any easier.

Setup help and staff training are included on every plan.