The Body Mass Index (BMI) is a simple yet powerful tool to measure whether your weight is healthy for your height. Our free online BMI Calculator helps you find out if you are underweight, normal, overweight, or obese based on your weight (kg/lbs) and height (cm/inches). Just enter your details below and get instant results, along with your BMI status.
Advanced BMI Calculator
Advanced BMI Calculator
Calculate your BMI using any combination of weight and height units
kg
lbs
cm
ft/in
You can mix units - for example, kg with feet/inches
Your BMI Result
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Underweight
Normal
Overweight
Obese
Enter your information and click "Calculate BMI" to see your results.
Ready to Calculate
Enter your details and click the calculate button to see your BMI result.
Health Tips
Eat a balanced diet with plenty of fruits and vegetables.
Get at least 30 minutes of physical activity daily.
Drink plenty of water and limit sugary beverages.
Aim for 7-9 hours of quality sleep each night.
Frequently Asked Questions (FAQ)
Advanced BMI Calculator
Calculate your BMI using any combination of weight and height units
You can mix units - for example, kg with feet/inches
Your BMI Result
Ready to Calculate
Enter your details and click the calculate button to see your BMI result.
Health Tips
Q: What is BMI and why is it important?
A: BMI (Body Mass Index) is a number calculated from your weight and height. It helps to classify whether you are underweight, normal weight, overweight, or obese. It’s a useful screening tool for health risks related to body weight.
Q: How accurate is the BMI calculator?
A: The BMI calculator provides a quick estimate of body fat based on height and weight. It is generally accurate for adults but may not fully apply to athletes, children, or the elderly since it doesn’t measure muscle mass or fat distribution.
Q: Can BMI be used for children?
A: For children and teenagers, BMI is age- and sex-specific. Pediatricians use growth charts to interpret BMI values, so the standard adult BMI ranges do not directly apply to kids.
Q: What BMI range is considered healthy?
A: For adults, a BMI between 18.5 and 24.9 is considered normal and healthy. Below 18.5 is underweight, 25 to 29.9 is overweight, and 30 or above is considered obese.
