< 18.5Underweight
18.5–24.9Normal weight
25–29.9Overweight
≥ 30Obese
Frequently Asked Questions
How do I use BMI Calculator?▾
Calculate Body Mass Index from height and weight. Enter your details and get an instant estimate.
Is BMI Calculator accurate?▾
BMI Calculator uses widely accepted formulas, but results are estimates. Consult a healthcare professional for medical advice.
Is BMI Calculator free?▾
Yes, BMI Calculator is free with no sign-up needed.
Is my data private?▾
All calculations happen in your browser — no personal data is stored or sent anywhere.
Does BMI Calculator work on mobile?▾
Yes, BMI Calculator is mobile-friendly and works on any device.