BMI Calculator
Calculate your Body Mass Index (BMI) and discover your healthy weight range based on your height.
Your BMI
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Category
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Healthy BMI Range
18.5 - 24.9
Healthy Weight Range
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How to Use the BMI Calculator
- Choose your unit system: Select either Metric (kg, cm) or Imperial (lb, in).
- Enter your weight: Type your current weight.
- Enter your height: Type your height (in cm or feet/inches).
- View your results: Your BMI, category, and healthy weight range appear instantly.
BMI Formula
The BMI is calculated using the following formulas:
- Metric: BMI = weight (kg) / [height (m)]²
- Imperial: BMI = 703 × weight (lb) / [height (in)]²
BMI Categories
| BMI Range | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 - 24.9 | Normal weight |
| 25.0 - 29.9 | Overweight |
| 30.0 and above | Obese |
Frequently Asked Questions
What is a good BMI?
A BMI between 18.5 and 24.9 is considered healthy for most adults. However, BMI is just one measure of health and doesn't account for muscle mass, bone density, or body composition.
Is BMI accurate?
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat, and may not be accurate for athletes, pregnant women, or the elderly. Consult a healthcare professional for personalized advice.
How can I lower my BMI?
To lower your BMI, focus on a balanced diet with a calorie deficit, regular exercise (cardio and strength training), adequate sleep, and stress management. Consult a healthcare provider or nutritionist for personalized guidance.