Healthy Weight Calculator

Find the weight range that puts your BMI in the healthy 18.5–24.9 zone for your height.

About this calculator

The WHO defines a healthy adult BMI as 18.5–24.9 kg/m². This calculator inverts the BMI formula to show the actual weight range that corresponds to that zone at your height.

Formula

Lower bound = 18.5 × height² (m²) Upper bound = 24.9 × height² (m²)

Results are estimates for information only — not medical advice. Sources: WHO, CDC, and peer-reviewed research.