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BMI Calculator
YOur RESULT
0
Metric
Imperial
Weight
Height
YOUR BMI
YOUR BODY MASS INDEX
0
very serious
- Very serious lack of weight — < 16.0
- Serious lack of weight — < 16.0 - 16.9
- Lack of weight — < 17.0 - 18.4
- Health weight — < 18.5 - 24.9
- Overweight — < 25.0 - 29.9
- Obesity — > 30.0
CONTROL YOUR WEIGHT
What is BMI?
Formula for calculating BMI
- Metric: BMI = Weight (kg) / [Height (m)]2
- Imperial: BMI = Weight (lbs) / [Height (in)]2
BMI chart for women & men (adult)
Source: Centers for Disease Control and Prevention
| Men | Women | Status |
| <20.7 | <19.1 | Underweight |
| 20.7 - 26.4 | 19.1 - 25.8 | Normal (Healthy) |
| 26.4 - 27.8 | 25.8 - 27.3 | Marginally overweght |
| 27.8- 31.1 | 27.3 - 32.3 | Overweight |
| >31.1 | >32.3 | Obese |
Healthy body mass index for kids by age
| Age | Boys | Girls |
| 6 | 13.2 - 18.8 | 12.9 - 18.3 |
| 7 | 13.4 - 19.8 | 13.2 - 19.1 |
| 8 | 13.7 - 20.9 | 13.5 - 20.1 |
| 9 | 13.9 - 21.8 | 13.8 - 21.0 |
| 10 | 14.2 - 22.7 | 14.2 - 21.9 |
| 11 | 14.6 - 23.6 | 14.5 - 22.7 |
| 12 | 14.9 - 24.3 | 14.9 - 23.4 |
| 13 | 15.2 - 25.0 | 15.2 - 24.0 |
| 14 | 15.5 - 25.5 | 15.6 - 24.6 |
| 15 | 15.9 - 26.1 | 15.9 - 25.0 |
| 16 | 16.2 - 26.5 | 16.2 - 25.4 |
| 17 | 16.4 - 27.0 | 16.5 - 25.7 |
| 18 | 16.7 - 27.4 | 16.7 - 25.9 |
World Health Organization body mass index (BMI) classifications
| Category | BMI |
| Severe thinnes | <16.0 |
| Moderate thinnes | 16.0 - 16.9 |
| Mild thinnes | 17.0 - 18.49 |
| Normal (healthy) range | 18.5 - 24.9 |
| Overweight | >25.0 |
| Preobese | 25.0 - 29.9 |
| Obese class I | 30.0 - 34.9 |
| Obese class II | 35.0 - 39.9 |
| Obese class III | >40.0 |
