Miscellaneous Utilities

BMI Prime Calculator

BMI Prime is the ratio of your BMI to the upper boundary of the "normal" range (25). A value of 1.0 means you're exactly at the upper limit; below 1.0 is healthy or underweight; above 1.0 is overweight or obese. It simplifies BMI interpretation.

Units

Height — Feet

Height — Inches

Weight (lbs)

BMI Prime

—

Your BMI—

BMI Prime (÷ 25)—

Healthy Weight Range—

Pounds to Healthy Upper Limit—

BMI Prime Reference

Below 0.74Severely underweight

0.74 – 0.84Underweight

0.84 – 1.00Normal weight ✓

1.00 – 1.20Overweight

1.20 – 1.40Obese class I

Above 1.40Obese class II+