Start with the numbers. Decide after.

Six tools, free, no account and no card. Nothing you type is stored or sent anywhere — the maths happens in your browser.

BMIPROTEINCOMPTIMEMUSCLEFLOORSSIX MEASURES — ONE PICTURE

Fill in the fields and your result appears here. Nothing is stored or sent anywhere.

Build note — not yet cleared for patient use

Every formula and threshold in these tools requires clinical leadership sign-off before it is shown to patients. Patients with kidney disease, liver disease, an eating-disorder history, or who are pregnant or breastfeeding must be routed to a clinician rather than shown an automated number.

Reading your numbers

What each number is actually worth

Most weight-loss sites treat every measurement as equally meaningful. They are not.

Trust most

Waist, and waist-to-height. They track the fat that actually affects your health, they respond to what you do, and they do not care what the scale says that morning.

Trust the trend

Body fat percentage and body weight. Any single reading is noise — hydration, salt, time of day. Four readings over four weeks is a signal worth acting on.

Trust least

BMI. It cannot distinguish muscle from fat and it says nothing about where weight sits. It matters mainly because insurers and prescribing guidelines are written around it.

Numbers are the easy part. The plan is the point.

See how the program uses these to protect muscle while the weight comes off.

How it works→Coming off your medication→