BMI Calculator
Calculate your Body Mass Index (BMI) to understand your weight status and health implications. Get personalized recommendations based on your height and weight.
Your BMI
Important Assumptions
This calculator uses the standard BMI formula and WHO classification categories.
BMI is a screening tool and should not be used as the sole indicator of health.
Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a number that helps doctors and health experts understand if your weight is healthy for your height. It's calculated by dividing your weight in kilograms by your height in meters squared.
How does BMI calculation work?
The BMI formula is: BMI = weight (kg) ÷ height (m)². This creates a ratio that shows how much you weigh compared to how tall you are. The calculator automatically converts between different units for your convenience.
What do the BMI categories mean?
BMI categories help you understand your weight status: Underweight (below 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (30 and above). These categories help identify potential health risks.
How accurate is BMI for health assessment?
BMI is a useful screening tool but has limitations. It's best used along with other health measurements.
What should I do with my BMI result?
Use your BMI result as a starting point for health discussions. If your BMI is outside the normal range, consider consulting a healthcare provider for personalized advice about diet, exercise, and lifestyle changes.