All free tools

Healthy weight check

Check your body mass index (BMI) and waist size, and see the healthy weight range for your height.

Your height
cm
Your weight
kg
Waist size (optional, but useful)
cm
Measure around your bare tummy, halfway between your lowest rib and the top of your hip bone, after breathing out.
You are
Only used for the waist check.

For adults aged 18 and over. Not for use during pregnancy.

Your answers stay on your device. Nothing is saved or sent to us.

These tools give general information only. They cannot diagnose a condition and do not replace advice from your prescriber. If you feel very unwell, go to the nearest hospital or call 112.