BMI Calculator
Calculate your Body Mass Index (BMI) using height and weight. Supports imperial and metric units with BMI category classification.
Your BMI
24.4
Normal
Underweight< 18.5
Normal18.5 – 24.9
Overweight25.0 – 29.9
Obese≥ 30.0
Healthy Weight Ranges by Height
| Height | Normal BMI Range (lbs) |
|---|---|
| 5'0" | 97–128 |
| 5'2" | 104–136 |
| 5'4" | 110–145 |
| 5'6" | 118–155 |
| 5'8" | 125–163 |
| 5'10" | 132–174 |
| 6'0" | 140–184 |
| 6'2" | 148–193 |
| 6'4" | 156–205 |
Frequently Asked Questions
What is BMI?+
Body Mass Index (BMI) is a measure of body fat based on height and weight. It's calculated as weight (kg) divided by height (m) squared. BMI is a screening tool, not a diagnostic measure of body fatness or health.
What are the BMI categories?+
Underweight: below 18.5. Normal weight: 18.5–24.9. Overweight: 25.0–29.9. Obese: 30.0 and above. These categories are based on WHO guidelines for adults.
Is BMI accurate?+
BMI has limitations. It doesn't distinguish between muscle and fat mass, so muscular people may have a 'high' BMI without excess fat. It also doesn't account for age, sex, bone density, or fat distribution. Use it as one data point, not a complete health picture.
Does BMI apply to children?+
BMI for children uses age- and sex-specific percentiles rather than the fixed adult categories. A pediatric BMI calculator accounts for normal growth patterns. This calculator is designed for adults (20+).