BMI Calculator
Calculate your Body Mass Index (BMI) and find your healthy weight range.
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Normal weight | 18.5 - 24.9 |
| Overweight | 25 - 29.9 |
| Obese | ≥ 30 |
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What is Body Mass Index (BMI)?
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9.
BMI Weight Categories
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Normal Weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obese | ≥ 30 |
Risks Associated with Being Overweight
Being overweight increases the risk of a number of serious diseases and health conditions. The following is a list of said risks:
- High blood pressure (Hypertension)
- High LDL cholesterol ("bad" cholesterol)
- Type 2 diabetes
- Coronary heart disease
- Stroke
How to Use This Calculator
- Select your preferred unit system (Metric or Imperial).
- Enter your current height in cm (or feet/inches).
- Enter your current weight in kg (or lbs).
- The calculator will instantly display your BMI and weight category.
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