Enter height and weight to see your BMI instantly.
Check Your BMI in Seconds
Enter your height and weight to instantly calculate your Body Mass Index (BMI) and see which general weight category it falls into — underweight, normal, overweight, or obese. This is a quick reference based on the standard BMI formula, not a substitute for professional medical advice.
⚖️ Great For
- Getting a quick reference for your current weight status
- Tracking how your BMI changes over time
- Checking the general range before setting a fitness goal
- Comparing height/weight combinations quickly
📋 How to Use
- Enter your height in centimeters
- Enter your weight in kilograms
- Your BMI and category appear instantly
- Press "Copy result" to copy it as text
Frequently Asked Questions
How is BMI calculated?
BMI is calculated as weight in kilograms divided by height in meters squared (kg/m²). This tool uses that standard formula.
Is BMI a medical diagnosis?
No. BMI is a general reference value based on height and weight alone — it doesn't account for muscle mass, body composition, age, or other factors. For any health concerns, please consult a healthcare professional.
What do the BMI categories mean?
Based on the commonly used classification: under 18.5 is "underweight," 18.5–24.9 is "normal," 25–29.9 is "overweight," and 30 or above is "obese." These are general reference ranges, not individual medical thresholds.
Is my height/weight data saved anywhere?
No. The calculation happens entirely in your browser and nothing is saved or sent anywhere.