BMI Calculator
Body Mass Index (BMI) is a quick measure of the relationship between your weight and height, helping you see whether your weight is in the healthy range. Enter your weight and height below for an instant result. Note: BMI is a general indicator and does not distinguish muscle from fat — consult a doctor for an accurate assessment.
Medical disclaimer: This tool is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
Frequently asked questions
How is BMI calculated?
Divide weight in kilograms by height in meters squared: BMI = weight ÷ (height × height). Example: 70 kg at 1.70 m → 70 ÷ (1.70×1.70) = 24.2.
What is a normal BMI range?
Below 18.5 is underweight, 18.5–24.9 is normal, 25–29.9 is overweight, and 30 or above is obese.
Is BMI always accurate?
No. It does not distinguish muscle from fat and may not suit athletes, pregnant women, or older adults. Use it as a first indicator and consult a nutrition or internal-medicine doctor.