BMI Calculator

Check your Body Mass Index and find your healthy weight range instantly

Quick BMI Check

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BMI Categories Chart

Category BMI Range Health Risk
Underweight< 18.5Moderate
Normal weight18.5 - 24.9Low
Overweight25.0 - 29.9Increased
Obese Class I30.0 - 34.9High
Obese Class II35.0 - 39.9Very High
Obese Class III≥ 40.0Extremely High

Understanding BMI

Body Mass Index (BMI) is a widely used screening tool that estimates body fatness based on weight and height. While not perfect, it's a useful starting point for assessing health risks related to weight.

Limitations of BMI

  • Doesn't distinguish between muscle and fat — athletes may show "overweight" BMI
  • Doesn't account for body fat distribution (belly fat is more dangerous)
  • Less accurate for elderly people, pregnant women, and children
  • Different ethnic groups may have different risk thresholds

For a more complete picture, use our TDEE Calculator which includes body composition estimates, body fat percentage, and lean mass calculations alongside BMI.

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