Body Mass Calculator

About This Calculator

This body mass calculator helps you determine your body mass and understand your body composition. It takes into account your height, weight, gender, and age to provide a comprehensive assessment of your body mass.

Your Body Mass Results

Body Mass Index (BMI)

0

kg/m²

Body Mass Category

-

Body Composition Estimate

Lean Mass: -

Fat Mass: -

Body Fat %: -

Ideal Weight Range: -

Weight Status: -

How to Use This Calculator

  1. Enter your height in centimeters or inches.
  2. Enter your weight in kilograms or pounds.
  3. Enter your age in years.
  4. Select your gender.
  5. Click the "Calculate Body Mass" button to see your results.
  6. The calculator will show your BMI, body mass category, and estimated body composition.
  7. Use the "Reset" button to clear all inputs and start over.

Calculator Information

This calculator uses several formulas to estimate your body mass and composition:

BMI Formula

The Body Mass Index (BMI) is calculated using:

BMI = weight (kg) / (height (m))²

Body Fat Estimation

Body fat percentage is estimated using the U.S. Navy formula:

  • For men: %Body Fat = 86.010 × log10(abdomen - neck) - 70.041 × log10(height) + 36.76
  • For women: %Body Fat = 163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387

BMI Categories

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

Frequently Asked Questions

Body mass refers to the total weight of your body, including all tissues, organs, and fluids. It's a measure of your total body weight and composition, which includes muscle mass, fat mass, bone mass, and water content.

The body fat estimation provided by this calculator is an approximation based on mathematical formulas. For more accurate measurements, consider using methods like DEXA scans, hydrostatic weighing, or skinfold measurements performed by a professional.

A healthy body mass varies by individual and depends on factors like age, gender, height, and body composition. Generally, a BMI between 18.5 and 24.9 is considered healthy for most adults. However, it's important to consider other factors like muscle mass, bone density, and overall health when assessing body mass.