BMI Calculator - FrontCalculator

Body Mass Index - Evaluate your weight relative to your height

Free BMI Calculator

Enter your height and weight to calculate your Body Mass Index

Good to know

  • • The same formula is used for BMI calculation for both women and men
  • • The World Health Organization (WHO) has defined this Body Mass Index as the standard
  • • BMI does not account for muscle mass, age or gender

What is BMI?

BMI, or Body Mass Index, is an essential tool for evaluating your weight relative to your height. It helps determine a person's body composition and identify health risks related to weight.

The World Health Organization (WHO) has defined BMI as the standard for assessing risks related to overweight and obesity.

BMI Formula

BMI = Weight (kg) ÷ [Height (m)]²

Example: A person weighing 70 kg and measuring 1.75 m will have a BMI of 22.9

BMI Interpretation

Morbid obesity

BMI ≥ 40

Very high risk of complications

Severe obesity

BMI 35-39.9

High risk of complications

Moderate obesity

BMI 30-34.9

Moderate risk of complications

Overweight

BMI 25-29.9

Slightly increased risk

Normal weight

BMI 18.5-24.9

Ideal weight for health

Underweight

BMI < 18.5

Risk of deficiencies

Frequently Asked Questions about BMI (FAQ)

What is BMI?

BMI helps determine a person's body composition. The Body Mass Index is a measure used to evaluate whether your weight is proportional to your height.

Why calculate my BMI?

Calculating your BMI helps you identify health risks related to your weight, such as obesity or underweight.

What is the ideal BMI?

The ideal BMI for most adults is between 18.5 and 24.9. This corresponds to a weight range considered "normal" according to WHO recommendations.