Height Weight BMI Calculator
Calculate BMI from your height and weight. Works with metric (kg, cm) and imperial (lbs, inches) units.
Understanding BMI
Metric: 175cm, 70kg = 22.9 BMI | Imperial: 5'9", 154 lbs = 22.7 BMI
BMI Categories
- Underweight: BMI less than 18.5
- Normal: BMI 18.5 to 24.9
- Overweight: BMI 25 to 29.9
- Obese: BMI 30 or greater
BMI Limitations
BMI doesn't measure body fat directly. It may overestimate fat in muscular people and underestimate fat in elderly who have lost muscle.
Frequently Asked Questions
Can I use feet and pounds?
Yes, switch to Imperial mode to enter height in inches and weight in pounds.
Does height affect BMI calculation?
Yes, taller people generally have higher healthy weight ranges.