Healthy Weight Calculator
This calculator shows the weight range in which BMI falls between 18.5 and 24.9 for a given height — the range commonly labelled as healthy weight for adults.
A population screening range is not an individual target. It does not apply to children, pregnant women, many older adults, athletes with high muscle mass, and people of some ethnicities whose risk thresholds differ. Interpretation belongs with a healthcare professional.
Healthy weight range calculator
The weight range corresponding to the WHO healthy BMI band (18.5–24.9) for your height.
Methodology & references
Weight range = BMI bounds × height (m)², using the WHO healthy BMI band 18.5–24.9 for adults.
References
Limitations
- Derived from BMI, with all of BMI's well-known weaknesses.
- Very muscular people can be healthy outside this range; older adults often are.
- Do not use this range as a target for dieting without professional advice.
How to use this calculator
- Enter your height (centimetres or inches).
- Press Calculate to see the weight range in kilograms and pounds.
- Read the limitations before comparing the range with your current weight.
Understanding your result
The range is the weight at which your BMI would fall between 18.5 and 24.9. It is a statistical band: many perfectly healthy people sit outside it, and being inside it does not guarantee health.
Use the range as context, not as a verdict. Waist circumference, blood pressure, lab results, family history and lifestyle together tell a far more complete story than any single threshold.
Methodology & references
Weight range = BMI bounds × height (m)², using the WHO healthy BMI band 18.5–24.9 for adults.
Limitations
- Derived from BMI, with all of BMI's well-known weaknesses.
- Very muscular people can be healthy outside this range; older adults often are.
- Do not use this range as a target for dieting without professional advice.
Frequently asked questions
Why does the calculator show a range instead of one target weight?
The range is the weight at which BMI falls between 18.5 and 24.9 for your height. Biology is continuous, so a single ideal weight would be arbitrary; the band is a screening context.
Is a weight outside this range always unhealthy?
Not necessarily. The range is statistical. Clinical judgement, history and other measurements matter more than crossing one threshold. Discuss your situation with a healthcare professional.
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