What is the Ideal Weight Calculator?
The ideal weight calculator gives a target body weight for your height using the Devine formula, alongside the healthy weight range from BMI.
How to use the Ideal Weight tool
- Enter Sex and Height.
- The result updates instantly as you type, or press Calculate.
- Use Try an example to see how it works, and Reset to start again.
Formula
Devine formula: men 50 kg + 2.3 kg per inch over 5 feet. Women 45.5 kg + 2.3 kg per inch over 5 feet.
Worked example
With sex Male, height 175 cm, the ideal weight (devine) comes to 70.5 kg. In pounds: 155.3 lb; Healthy BMI range: 56.7 to 76.3 kg.
Frequently asked questions
Is ideal weight the same for everyone my height?
No. Frame size, muscle mass and age matter. Treat it as a guide, not a rule.
Which is better, Devine or BMI range?
The BMI range gives a healthy window. Devine gives a single reference point.
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Checked by Calcovate · Formula tested against worked examples · Updated 7 Nov 2026 · How we check our calculators. General information only, not financial or medical advice.