BMI Calculator | Determine Your Body Mass Index

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Determine Your Body Mass Index

Body Mass Index (BMI) is a simple tool that helps determine body fat percentage and assess if you're at a healthy weight. Our calculator provides accurate results for both men and women, taking into account age and gender differences.

BMI Calculator

Understanding Your BMI Results

While BMI is a useful starting point for determining body fat percentage, it's important to remember that it doesn't directly measure body fat. Factors like muscle mass, bone density, and overall body composition can affect BMI results.

BMI Categories:

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

BMI for Men vs. Women

While the standard BMI categories apply to both men and women, there are some gender-specific considerations when interpreting body fat percentage:


  • Essential fat: 2-5%
  • Athletes: 6-13%
  • Fitness: 14-17%
  • Acceptable: 18-24%
  • Obese: 25% and higher


  • Essential fat: 10-13%
  • Athletes: 14-20%
  • Fitness: 21-24%
  • Acceptable: 25-31%
  • Obese: 32% and higher

BMI Trends Over Time

Tracking your BMI over time can provide valuable insights into your health journey. Here's a sample chart showing how BMI might change with weight loss efforts:

Note: This chart shows a hypothetical BMI reduction over a 12-month period. Individual results may vary.

Beyond BMI: Other Health Indicators

While BMI is a useful tool for determining body mass index and estimating body fat percentage, it's not the only indicator of health. Consider these additional factors:

  • Waist circumference
  • Body fat percentage (measured by calipers or bioelectrical impedance)
  • Blood pressure
  • Cholesterol levels
  • Blood sugar levels

For a comprehensive understanding of your health status, consult with a healthcare professional who can consider all these factors alongside your BMI.