Healthy Weight Calculator

Find the WHO-defined healthy weight range for your height in metric or US customary units.

⏱ Updated: 18 Sep 2026

Calculator

Healthy weight calculator: find the WHO-defined healthy weight range for your height, in metric or US customary units.

Healthy Weight Range
53.5 – 71.9 kg
118 – 159 lb
Based on a WHO-defined healthy BMI range of 18.5–24.9 solved for weight at your height. Does not account for muscle mass, bone density, or body composition.

Enter your height in metric or US units to find the healthy weight range for that height, based on WHO BMI bands.

How to Use the Healthy Weight Calculator

Switch between Metric and US units if needed, then enter your height alone — there's no weight field here, since weight is what the calculator solves for.

This tool runs the BMI formula in reverse. Instead of taking height and weight to produce a BMI, it takes height and the WHO's own healthy BMI band and solves for the weight range that would land inside it.

Min Weight (kg) = 18.5 × Height(m)²
Max Weight (kg) = 24.9 × Height(m)²

18.5 and 24.9 are the same WHO cutoffs the site's BMI Calculator uses for its "normal weight" band — not a separate, competing standard, just that same range solved in the other direction. Two people of identical height get the identical range back, regardless of their actual weight, because height is the only input.

The Same Limitations as BMI, Just Flipped

A range built entirely from height inherits every blind spot the BMI formula has. It can't distinguish muscle from fat — a heavily muscled person above this range isn't necessarily carrying excess fat, and someone within it isn't automatically in good metabolic health. Athletes, older adults, pregnant people, and anyone under 20 tend to get less useful numbers here, for the same reason the BMI Calculator's own guide flags: growing or unusual bodies need age- and sex-specific growth curves, not a flat adult formula.

Pair this with the Overweight Calculator, which takes an actual weight and reports how far above this same ceiling it sits — this tool gives the target, that one gives the gap.

Treat the output as a reference point for a conversation, not a target to hit exactly. A weight at the very edge of the range isn't automatically wrong for a given person, and one just outside it isn't automatically a problem.

A general reference, not a personal target. This range doesn't account for muscle mass, bone density, age, or overall health. Talk to a doctor or registered dietitian about what a healthy weight looks like for you specifically.