BMI Calculator – Calculate Your Body Mass Index Easily

Maintaining body weight is essential for overall wellness, and Body Mass Index (BMI) is a simple way to calculate whether your weight falls within a healthy range. Our BMI Calculator lets you quickly calculate your BMI using your weight and height, helping you take informed steps toward a healthier lifestyle.

BMI Calculator

BMI Calculator

Calculate your Body Mass Index to understand your weight category and take steps toward a healthier lifestyle.

Calculate Your BMI

in centimeters (cm)
in kilograms (kg)
22.5
Normal weight
Underweight
(<18.5)
Normal
(18.5-24.9)
Overweight
(25-29.9)
Obesity
(30+)

BMI Categories

Underweight
BMI less than 18.5
Normal weight
BMI 18.5 to 24.9
Overweight
BMI 25 to 29.9
Obesity
BMI 30 or greater

What is BMI?

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight, and obesity in adults. It is defined as a person's weight in kilograms divided by the square of their height in meters (kg/m²).

Note: BMI is a screening tool, not a direct measurement of body fat. It doesn't account for muscle mass, bone density, overall body composition, and racial and sex differences.

Use this calculator as a general guide only. For health advice, consult a medical professional.

What is BMI?

BMI (Body Mass Index) measures body fat based on weight relative to height. Doctors and health professionals widely use it to categorise individuals into:

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5 – 24.9
  • Overweight: BMI 25 – 29.9
  • Obesity: BMI 30 or higher

Knowing your BMI can help you track your fitness goals, maintain a healthy weight, and prevent lifestyle-related diseases.

How to Use the BMI Calculator

  1. Enter your body weight in kilograms (kg) or pounds (lbs).
  2. Enter your height in centimetres (cm) or inches (in).
  3. Click “Calculate” to get your BMI.
  4. View your BMI category and health recommendations instantly.

Our BMI Calculator is user-friendly, accurate, and works on any device, whether computer, tablet, or mobile.

Why Use Our BMI Calculator?

  • Instant Results: Get your BMI immediately.
  • Accurate Calculation: Uses the standard BMI formula.
  • Health Guidance: Understand if you’re underweight, normal, overweight, or obese.
  • Free and Online: No signup or download required.

FAQs

Q1. What is the ideal BMI range?

A: The normal BMI range is between 18.5 and 24.9.

Q2. Can BMI differ for men and women?

A: BMI is the same, but body composition may vary by gender.

Q3. Is BMI accurate for athletes?

A: BMI may not be accurate for athletes as it doesn’t distinguish between muscle and fat.

Q4. How often should I check my BMI?

A: You can check your BMI monthly to track changes in your weight and health.

Some of our best Calculators

  • Try our Age Calculator to know your exact age.
  • Use the Weight Converter for easy unit conversions.

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