Body Mass Index Calculator

Calculate BMI for men and women with 100% accuracy. You can also learn more about BMI with detailed charts and loads of information.

woman performing yoga for mantaining her body mass index


Your BMI


Range -

  • Below 18.5 - Underweight

  • Between 18.5 and 24.9 - Healthy weight

  • Between 25 and 29.9 - Overweight

  • Between 30 and Above - Obese

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Common questions about Body Mass Index

What does BMI stand for?

BMI stands for Body Mass Index.

What is Body Mass Index and what does it indicate?

Body Mass Index, also known as BMI, determines the amount of a person's body fat. A high BMI value indicates that the person is fatty or obese. Whereas, a low BMI value indicates that the person is underweight. BMI is very useful in determining weight categories that may lead to serious health issues.

How to calculate Body Mass Index with example?

BMI = W ÷ H2

Where W is the weight of the person in kilograms and H2 is their height in metres squared.

For example - Let's consider the weight and height of a person to be 70kg and 185cm respectively.

First, we shall convert the height from centimetres to metres by diving the height in cm by 100. We get a value of 1.85m.

Now let's square the height value 1.85 * 1.85 = 3.42

Finally, divide the weight value by the height value.

70 ÷ 3.42 = 20.5 which is our final BMI value.

Are BMI calculators accurate?

Yes, we can ensure that the BMI calculator is perfectly accurate and will give you 100% error-free results every time as it was developed with complete precision and tested thoroughly before reaching you.

Does BMI depend on age?

As for adults, BMI value does not depend on the age factor. But for children aged 2 to 20, it may be dependent as their body grows and changes its shape every few days.

Does BMI depend on gender?

No, the BMI value of any individual does not depend on their gender.

What is a good BMI range for adults?

For adults, a good or healthy BMI value should lie between 18.5 and 24.9.

What are the advantages of BMI?

The advantages of the Body Mass Index are as follows -

  • Body Mass Index helps in measuring the obesity rate in humans. Observing the changes in the BMI values over time can help doctors and researchers in evaluating the obesity levels in humans.
  • Knowing the BMI value of an individual, doctors can test and reduce the chances of health issues that may arrive due to obesity.

What are the disadvantages of BMI?

Much like any other body fat measuring tool, BMI also has some flaws and drawbacks. The disadvantages of the Body Mass Index are as follows -

  • Body Mass Index is just a simple formula that helps measure body fat based on the weight and height of a person. It does not consider the weight's source - whether it is fatty weight or tissue/muscles weight.
  • Thus, even if you have a standard weight, you still may fall under the overweight category based on your BMI.
  • The BMI value also does not differentiate between the type of fat a person has - whether it's subcutaneous fat or visceral fat.

What is subcutaneous fat and visceral fat?

Subcutaneous fat is the wobbly fat visible just under the skin that makes you look the way you are.

Visceral fat, on the other hand, is the fat encircling your organs. Though not visible from the outside, it can become the cause of numerous health diseases.

How to decrease BMI fast?

To decrease your BMI value, you should burn more calories than you consume. Exercise daily for at least 30 minutes and try to reduce consumption of fatty foods like Cheese, Sweets, Pastries, or Donuts. You can also try intermittent fasting to lose some extra fat within a few weeks or even days.

How to increase BMI fast?

To increase your BMI value, you should consume more calories than you burn. Try to eat nutrient-rich foods more frequently and increase consumption of fatty foods like Cheese, Sweets, Pastries, or Donuts. Eat more dairy products that include a high amount of fat and also add high-calorie drinks like smoothies and shakes to your diet.

Who invented Body Mass Index?

BMI was developed and invented by Adolphe Quetelet during the 19th century.'s main purpose is to provide fast, helpful, convenient, and 100% free online calculators in various categories. Currently, we have around 20 calculators to help you do quick calculations in categories such as fitness, finance, health, math, temperature, and others, and we are developing new calculators every week.
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