BMI Calculator

Calculate your BMI now with this calculator that we have created for you. BMI or Body Mass Index is an indicator of total body fat and is an important determiner of overall health of an individual. Use this simple and effective tool to find out if you are at your optimal weight or not. Even medical professionals use BMI to assess health risks associated with obesity, excess or low weight. This calculator computes your body mass index based on your gender, age, height and weight. After you input the information to this calculator, it will provide you with accurate BMI and also tell whether you are healthy, underweight or overweight. Accordingly, you can chalk out the changes you need to make for a healthier body.

age 2-100
in kg
in cm

BMI = 23 Kg/m2 (Normal)

  • Underweight
  • Normal
  • Overweight
  • Obesity

Here is how you can interpret your BMI score:

< 18.5Underweight
18.5 – 24.9Normal
25.0 – 29.9Overweight
> 30.0Obese

More About BMI and Weight Status


When the BMI of an adult is below 18.5, they are considered to be underweight. The main reason for this could be the inadequacy of nutrients in the body. The person may not be getting enough nutrients to develop bones, muscles, skin and hair. This can cause an array of health problems such as:

  • Osteoporosis or brittle bones
  • Poor immunity
  • Getting sick often and prone to seasonal illnesses
  • Weaker bones and poor dental health
  • Skin and hair problems
  • Chronic fatigue
  • Anemia with low blood platelets count
  • Irregular periods in women
  • Impaired and slow growth in children that doctors call ‘failure to thrive’
  • Risk of premature birth in pregnant underweight woman

Healthy Weight

When the total body fat is apt in a person according to age, height and weight, he/she is considered to have a healthy weight. The value of BMI for healthy weight should range between 18.5 to 24.9. Usually, people falling in this category are at no risk of health problems due to their body weight. However, this score needs to be maintained as per age, height and weight. You are healthy now doesn’t mean you will remain healthy. One should manage their weight with advancing age.


If you have a BMI between 25 to 29.9, you are highly likely to be overweight. This can be controlled by taking proper measures such as physical activeness, modifications in diet, healthy lifestyle, etc. There are many reasons why you could be overweight such as consuming more carbs and fats, poor activity levels and psychological factors. Being overweight can risk your health and cause these problems:

  • High cholesterol
  • Obesity
  • High blood pressure or hypertension
  • Sleep disorders
  • Fatigue


Having a BMI score above 30 makes you obese. This is a concerning situation as obesity is a major risk factor for a multitude of health problems including diabetes, hypertension, heart problems, brain stroke, gallbladder disease, cancer, osteoarthritis, sleep disorders, and even premature death. You must take the necessary measures to bring your BMI down.


Body Mass Index is the deciding factor whether a person is healthy or underweight or overweight or obese according to the age, weight and height. You should get your BMI calculated with an accurate BMI calculator like the one we have given above. It helps in finding out how healthy you are.