Free Online Tools

BMI Calculator

Calculate your Body Mass Index

BMI Categories

< 18.5
Underweight
18.5 - 24.9
Normal weight
25 - 29.9
Overweight
≥ 30
Obese

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight. It's used as a screening tool to identify possible weight problems.

BMI Limitations

  • Doesn't distinguish between muscle and fat
  • May not be accurate for athletes or bodybuilders
  • Doesn't account for bone density or body composition
  • Should be used with other health assessments

Note

BMI is a screening tool, not a diagnostic tool. Consult with a healthcare provider for personalized health advice.