Quickly calculate your Body Mass Index. No registration or signup required.
Use our free BMI calculator to quickly estimate your Body Mass Index (BMI) and find out which weight category you are in. Choose between metric and imperial units to get an instant result and better understand your health status.
BMI stands for Body Mass Index. It is a simple number based on your height and weight that helps classify you as underweight, normal weight, overweight, or obese.
BMI is a quick screening tool, not a medical diagnosis. It does not distinguish between muscle and fat and may be less accurate for athletes, pregnant women, very muscular people, or older adults. Always talk to a healthcare professional for personal advice.
BMI less than 18.5 - your weight may be too low, and you might benefit from gaining weight under medical guidance.
BMI between 18.5 and 24.9 - this range is considered a healthy weight for most adults.
BMI between 25 and 29.9 - you may be carrying extra weight that could increase health risks over time.
BMI of 30 or higher - this category is linked to a higher risk of conditions like heart disease, diabetes, and high blood pressure.
Regularly checking your BMI is a simple way to keep track of changes in your weight over time. Use our free online BMI calculator whenever you need a quick health check, and discuss your results with a doctor or nutrition expert if you have concerns.