BMI Calculator (Metric)

Body Mass Index Calculator (kg/cm)

BMI Calculator (Metric)

BMI for Height

cm

and Weight

kg

Body Mass Index (BMI): Complete Guide to BMI Calculation

What is Body Mass Index (BMI)?

Body Mass Index (BMI) is a medical indicator that helps assess whether a person's weight is appropriate for their height. The BMI calculator uses the formula: BMI = weight (kg) ÷ height² (m). This indicator is widely used by healthcare professionals to categorize weight status.

BMI Categories and Their Meaning

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5-24.9
  • Overweight: BMI 25.0-29.9
  • Obesity: BMI 30.0 and above

How to Calculate BMI Manually?

To calculate body mass index step by step:

  1. Measure your weight in kilograms
  2. Measure your height in centimeters and convert to meters
  3. Square the height value
  4. Divide weight by the obtained value

Example: With 70 kg weight and 175 cm height: BMI = 70 ÷ (1.75)² = 22.86

Limitations of BMI Calculator

It's important to remember that the BMI calculator doesn't account for:

  • Muscle mass and body composition
  • Body fat distribution
  • Age and gender
  • Ethnic background

Healthy Lifestyle and Maintaining Normal BMI

To maintain a healthy body mass index, it's recommended to:

  • Follow a balanced diet with calorie control
  • Engage in regular physical exercise (minimum 150 minutes weekly)
  • Get adequate rest (7-9 hours of sleep)
  • Manage stress and avoid harmful habits

Common BMI Examples by Height and Weight

Check the BMI for common height and weight combinations:

Note: BMI is a screening tool, not a diagnosis. Consult a healthcare professional for a personal health assessment.

See Also

BMI Calculator (Metric)

This calculator will help you to calculate Body Mass Index (BMI) for a given weight (kg) and height (cm). For example, it can help you find out what is BMI for 165cm and 80kg? (The answer is: 29.38). Enter height (e.g. 165 cm) and weight (e.g. 80 kg) and hit the 'Calculate' button.

FAQ

What is a healthy BMI?

A BMI between 18.5 and 24.9 is considered a normal, healthy weight for most adults. Below 18.5 is underweight, 25 to 29.9 is overweight, and 30 or above is classified as obese.

Does BMI account for muscle mass?

No. BMI is calculated only from height and weight, so it cannot tell muscle from fat. Very muscular people can have a high BMI while carrying little body fat, which is one of the formula's main limitations.

What is the BMI formula in the metric system?

BMI equals your weight in kilograms divided by your height in metres squared (BMI = kg ÷ m²). For example, 80 kg and 1.65 m give a BMI of 29.38.