6XC

Ideal Weight Calculator

Calculate your ideal weight from height and sex using the Devine formula and the WHO healthy BMI range.

789 views

ft / in

How Is Ideal Weight Calculated?

Two widely used references: the Devine formula (used in medicine for dosing) gives men 50 kg + 2.3 kg per inch over 5 feet, and women 45.5 kg + 2.3 kg per inch; and the WHO healthy BMI range (18.5–24.9), which converts your height into a weight interval rather than a single number.

"Ideal" weight is a statistical reference, not a personal target — body composition, age and muscle mass matter. This tool is informational, not medical advice.

Frequently Asked Questions

Which result should I trust — Devine or the BMI range?

Use the BMI range as the practical guide: anywhere inside it is considered healthy. The Devine number is a single clinical reference point used mainly for medication dosing.

Does age affect ideal weight?

The formulas here use only height and sex. In practice, slightly higher BMI values in older adults are not associated with worse health, so treat the range flexibly with age.

Is ideal weight different for athletes?

Muscular people can healthily exceed the range since muscle weighs more than fat. Body-fat percentage is a better indicator for athletes.

Similar Tools

BMI Calculator Calculate your Body Mass Index from height and weight and see which WHO category it falls into. Calculate Daily Calorie Calculator Calculate your BMR and daily calorie needs (TDEE) with the Mifflin-St Jeor equation, plus targets for losing or gaining weight. Calculate Pregnancy Due Date Calculator Calculate your estimated due date, current pregnancy week and trimester from the first day of your last period. Calculate Daily Water Intake Calculator Calculate how much water you should drink per day based on your weight and exercise, in litres and glasses. Calculate