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Healthy Weight Calculator

The healthy weight range for your height from the BMI 18.5 to 24.9 band, in kg or pounds, and whether your current weight sits below, inside or above it.

Enter your age, height and current weight. This adult screening tool shows a BMI-based range, not a prescribed goal.

Adult measurements

Enter centimetres and kilograms, or feet, inches and pounds. Changing units does not convert an entered weight.

This tool covers adults aged 20 through 80.

Your standing height in centimetres.

Use kilograms for metric or pounds for US units. Accepted range: 30–300 kg or 66–661 lb.

Results

Assumptions and formula

For adults aged 20 to 80, the reference endpoints are BMI 18.5 and 24.9 multiplied by height in metres squared. US measurements use weight in pounds and height in inches with the factor 703.

Endpoints are rounded to one decimal before comparing your entered weight. The distance is arithmetic to the displayed range, not a recommendation to gain or lose weight. CDC defines healthy adult BMI as 18.5 to less than 25; this calculator uses the specification’s 24.9 endpoint. Pregnancy, children and athlete-specific interpretation are excluded.

Worked example

At 175 cm the displayed range is 56.7 to 76.3 kg. An entered weight of 95 kg is 18.7 kg above that range.

Frequently asked questions

What is a healthy weight for my height?

The range that puts BMI between 18.5 and 24.9. For someone 170 cm tall that is 53.5 to 72 kg; for 5 ft 10 in (178 cm) it is about 58.5 to 79 kg, or 129 to 174 lb. The band is wide on purpose: it covers different builds and the fact that BMI does not see muscle or where fat sits. If you are outside it, the distance matters more than the label, and if you are a long way inside it with a high waist measurement, the range alone is not reassurance. This calculator shows the range and your position in it without rounding either. Read down a healthy weight chart and every row is the same BMI band applied to a different height; this weight range calculator gives you your row without the table.

Is this a target weight plan?

No. It shows the adult BMI 18.5 to 24.9 weight band for the entered height and the minimum arithmetic change needed to reach it. It is not a plan or diagnosis.

Sources

Sources reviewed 2026-09-13: checked against their current editions on that date.

This page is an educational estimate and is not medical advice. Follow individual guidance from your clinician.

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