A Body Mass Index (BMI) calculator is a tool used to estimate body fat content and assess whether an individual is at a healthy weight for their height. While BMI is not a perfect measure of body fat or overall health, it provides a quick and easy way to screen for potential weight issues.

Here are the general BMI categories for adults:

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5 to 24.9
  • Overweight: BMI 25 to 29.9
  • Obese: BMI 30 or greater

It's important to note that BMI doesn't account for factors like muscle mass, bone density, age, or gender. For a more comprehensive assessment of your health, consult with a healthcare professional.