BMI Prime Calculator

Calculate BMI Prime (ratio to upper normal BMI of 25). Free, instant.

How to Use BMI Prime Calculator

1

Enter weight and height.

2

Get BMI Prime (1.0 = upper limit of normal).

3

Copy or download your result.

Frequently Asked Questions

What does BMI Prime mean?

Below 1.0 is normal. 1.0–1.2 is overweight. Above 1.2 is obese.