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Healthy Weight Estimator

See the weight range that corresponds to a healthy adult BMI for your height.

Healthy Weight Estimator

Units

This is an educational estimate and is not a maritime medical standard.

SeafarerFit provides educational information, health calculators, screening tools and medical-examination preparation resources. It does not provide diagnosis, treatment, medical certification or official determination of fitness for sea service.

Your answers are calculated in your browser and are not sent to SeafarerFit.

About this estimate

The range shown is the weight that gives an adult BMI of 18.5–24.9 at your height. A reference value from the Devine formula is also shown; it was originally developed for medication dosing and is included for comparison only.

Your healthy weight depends on muscle mass, body frame, age and health conditions, so treat this as a broad guide.

This is an educational estimate and is not a maritime medical standard.