[calculatornet_bmi_calculator]
body mass index formula
BMI = weight(kg)/height2(m2)
OR
BMI = weight(lb)/height2(in2)
| Category | BMI range – kg/m2 |
| Severely underweight | < 16.5 |
| Underweight | 16.5 – 18.5 |
| Normal | 18.5 – 25 |
| Overweight | 25 – 30 |
| Obese Class I | 30 – 35 |
| Obese Class II | 35 – 40 |
| Obese Class III | > 40 |
body mass index chart for adult
body mass index table for children and teens, age 2-20
| Category | Percentile Range |
| Underweight | <5% |
| Healthy weight | 5% – 85% |
| At risk of overweight | 85% – 95% |
| Overweight | >95% |
