Enter your weight and height to calculate your BMI.
The BMI (Body Mass Index) calculator estimates your body mass index from your height and weight, then places you into standard categories such as underweight, normal weight, overweight, or obese. It uses the same formula that many public health guidelines are based on, so your result is easy to compare with common charts and recommendations.
In addition to the numeric BMI value, this tool also highlights a suggested "healthy" weight range for your height. That can help you see roughly how far you are from that range in either direction.
BMI is primarily a screening tool. A higher BMI usually indicates a higher level of body fat, and a lower BMI suggests the opposite, but it does not distinguish between fat and lean mass. For example, athletes with a lot of muscle may have a "high" BMI while still having a healthy body composition.
Use your BMI as one data point alongside other factors such as waist circumference, blood tests, blood pressure, fitness level, and how you feel day to day.
BMI does not account for age, sex, ethnicity, muscle mass, bone density, or where fat is distributed on your body. For children, older adults, pregnant people, and very muscular individuals, BMI may be especially misleading.
If your BMI falls outside the "normal" range or you have any concerns about your weight or health, use this result as a starting point for a conversation with a qualified healthcare provider. They can interpret your BMI in context and help you decide whether any lifestyle or medical changes are appropriate.