Calculator

BMI is a quick screening metric based on height and weight. It doesn’t measure body fat directly and can be less accurate for very muscular people or certain body types.

Inputs

Results

BMI
—
Category
—
Healthy weight range (estimate)
—
Unit mode
—
Metric Value Formula / Notes
What’s the BMI formula?

US: BMI = (lbs ÷ inches²) × 703
Metric: BMI = kg ÷ meters²

Why can BMI be misleading?

BMI doesn’t measure body fat directly. Some people with high muscle mass may have a higher BMI without high body fat.

What is a “healthy weight range” here?

This is an estimate based on BMI 18.5–24.9 at your height. It’s a common reference range, not a medical target.

Educational only — not medical advice. If you have concerns, consider talking with a qualified clinician.