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BMI Prime Calculator

BMI divided by 25 — a dimensionless score that puts your weight status in immediate context.

🔒 All math runs in your browser. Data never leaves this device.

Frequently asked questions

What is BMI Prime?

Your BMI divided by 25. A BMI Prime of 1.0 means you are at the overweight threshold.

Why use BMI Prime instead of BMI?

It is easier to interpret at a glance. "1.2× the upper healthy bound" is more intuitive than "BMI 30".

Is BMI Prime used clinically?

It is not widely used in clinical practice but appears in research literature and is endorsed by some public-health bodies for its simplicity.