BMI Calculator

Calculate your Body Mass Index based on height and weight. See your health category with a visual indicator.

Calculated locally — no data stored or transmitted

UnderweightNormalOverweightObese

BMI categories

BMICategory
Below 18.5Underweight
18.5 – 24.9Normal weight
25.0 – 29.9Overweight
30.0+Obese

Limitations

BMI doesn't account for muscle mass, bone density, age, gender, or fat distribution. Athletes with high muscle mass may show as overweight. It's a screening tool, not a diagnostic one — always consult a healthcare provider. For other calculations, try the age calculator or loan calculator.

Frequently Asked Questions

How is BMI calculated? +
BMI = weight (kg) ÷ height (m)². For example, 70kg ÷ (1.70 × 1.70) = 24.2.
Is BMI accurate for athletes? +
No. BMI doesn't distinguish between muscle and fat. Use body fat percentage for a more accurate assessment.