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BMI Calculator
Calculate Body Mass Index with metric or imperial units and health categories.
How to Use the BMI Calculator
- Select Metric or Imperial units.
- Enter your height and weight.
- Click Calculate BMI to see your Body Mass Index and health category.
Formula & Method
Metric: BMI = weight(kg) / height(m)²
Imperial: BMI = 703 × weight(lbs) / height(in)²
Categories: Underweight <18.5 | Normal 18.5-24.9 | Overweight 25-29.9 | Obese ≥30.
Examples
| Height | Weight | BMI | Category |
|---|---|---|---|
| 175 cm | 70 kg | 22.9 | Normal |
| 160 cm | 80 kg | 31.3 | Obese |
Frequently Asked Questions
What is a healthy BMI?
A BMI between 18.5 and 24.9 is considered normal.
Does BMI account for muscle mass?
No, BMI is a general screening tool and does not distinguish muscle from fat.
Should I use metric or imperial?
Both give the same result. Use whichever you are comfortable with.
🔥 Popular BMI Calculator Results
Quick links to common calculations:
People Also Ask
What is a normal BMI for adults?
A BMI between 18.5 and 24.9 is considered normal weight.
Can BMI be wrong for athletes?
Yes, BMI does not distinguish between muscle and fat mass.