What is a healthy weight for your height? There is no single perfect number, but a few trusted formulas and the healthy BMI range give you a sensible target. Enter your height in the free ideal weight calculator below to see your healthy weight range and what popular formulas suggest for your build.

What is a healthy weight for my height?

The most widely used guide is the healthy BMI range of 18.5 to 24.9, which gives a weight range rather than one figure. For example, someone 165 cm (5 ft 5 in) tall has a healthy range of roughly 50 to 68 kg (110 to 150 lb). The calculator above shows this range, plus what four classic medical formulas (Devine, Robinson, Miller and Hamwi) suggest as a single target weight.

Which ideal weight formula is best?

No single formula is perfect, which is why the calculator shows several. They were originally created to help with medication dosing and are based only on height and sex, so they do not account for your frame size, muscle or body fat. Think of the numbers as a helpful ballpark. A muscular, athletic person can be perfectly healthy above these figures.

Beyond the number on the scale

Ideal weight is a useful starting point, but it does not tell the whole story. Two people at the same weight can have very different amounts of muscle and fat. Measures like waist circumference, waist-to-hip ratio and how you feel and move are just as important. Focus on healthy habits rather than hitting one exact number.

Frequently asked questions

What should a 5 ft 5 in woman weigh?

A woman who is 5 ft 5 in (165 cm) has a healthy BMI weight range of about 50 to 68 kg (110 to 150 lb). The exact ideal within that range depends on her build and body composition.

Is ideal weight the same as BMI?

Not quite. BMI gives a healthy weight range for your height, while ideal weight formulas give a single target figure. This calculator shows both so you can compare.

Do these formulas work for very tall or short people?

They become less accurate at the extremes of height and for very muscular people. Use them as a rough guide and speak to a health professional for personal advice.