BMI Calculator
Calculate your Body Mass Index (BMI) to assess your body weight.
Is BMI a Good Measure of Health?
Body Mass Index (BMI) is a simple, widely used tool for assessing weight status. It's a quick way to see if your weight is healthy for your height. However, it's not a perfect measure. It doesn't distinguish between fat and muscle, which means very muscular people can have a high BMI without being overweight. Think of it as a starting point—a useful screening tool that can indicate potential health risks, but not a definitive diagnosis of your body composition or health.
How to Calculate Your BMI
Our calculator supports both Metric and Imperial units. Simply select your preferred system and enter your details:
- Height & Weight: Enter your current height and weight.
The calculator will instantly provide your BMI score and where you fall on the standard weight status categories.
Frequently Asked Questions (FAQ)
Q: What are the standard BMI categories?
A: For most adults, the categories are: Below 18.5 (Underweight), 18.5 to 24.9 (Normal weight), 25.0 to 29.9 (Overweight), and 30.0 and above (Obesity).
Q: Why isn't BMI always accurate?
A: Its main limitation is that it can't tell the difference between fat and muscle. An athlete with a lot of muscle mass might have a high BMI and be classified as "overweight," even if they have very low body fat. That's why for a fuller picture, it's good to consider it alongside a Body Fat Percentage calculation.