BMI Calculator

BMI Calculator helps you to check the Body Mass Index status of men and women. Also, it uses height and weight to measure body fat.


About BMI Calculator

BMI calculator is an online tool used as a trustworthy indicator of a person's body weight as per their height. In other words, using this tool you can determine your body mass index status in correspondence with your height and weight. Also, our body mass index calculator supports both "US/UK Units" and "Metric Units". So, you can enter the height in inches or centimeters and weight in pounds or kilograms.

Most importantly, this tool is absolutely free and easy to use. You just need to enter the height and weight and press the "Calculate" button. That's it. As a result, you will get an accurate BMI status instantly. Our Calculator will display your BMI, BMI category, and the health risk associated with the category.

BMI Calculator for Men and Women

Today, almost everyone is health-conscious. Everyone wants to know the category of their weight. Whether they are underweight, normal, overweight, obese, or severely obese. BMI helps you manage your health. Also, it's an integral factor affecting our health insurance and term insurance premiums. If you want to determine your weight category or want to check your body mass index, use our BMI calculator.

What is BMI?

BMI (Body Mass Index) measures the leanness or thinness of a person based on their height and weight. It serves as an indicator of if the person has a healthy body weight according to their height. The value we get from the calculation of BMI is then used to determine whether a person is underweight, normal, overweight, obese, or severely obese depending on the range in which the value lies.

BMI Categories Table

The BMI ranges can vary based on various factors like region, age, gender, etc. Below we have discussed the different BMI categories that the body mass index calculator follows along with the different health risks associated with each category.

BMI Category BMI Range (kg/m2) Health Risk
Underweight 18.4 and below Malnutrition Risk
Normal weight 18.5 - 24.9 Low Risk
Overweight 25 - 29.9 Enchanced Risk
Moderately Obese 30 - 34.9 Medium Risk
Severely Obese 35 - 39.9 High Risk
Very Severely Obese 40 and above Very high Risk

BMI Formula

There are two different formulas to calculate BMI.

1. If mass in pounds (lbs) and height in inches (in):
BMI(kg/m2) =  
  × 703
2. If mass in kilograms (kg) and height in meters (m):
BMI(kg/m2) =  

How to calculate Body Mass Index?

As we discussed above, there are two formulas or methods that we can use to calculate the body mass index.

1. For US/UK Units

In this, we will take the height in inches and weight in pounds. Now follow the steps below.

  1. If the height is in feet then firstly convert it into inches. You can simply multiply the feet value by 12 to get inches. For Example, 5 feet = 60 inches.
  2. Use the weight in pounds(lbs).
  3. Now place the value in the formula and do the simple math.
  4. Lastly, multiply the resultant value by 703 to get BMI.

Let's take an example to understand the above all steps.


Suppose, Height = 5 feet and 11 inches = 71 inches
Weight = 155 pounds (lbs).

Let's place the above values in the BMI formula.

BMI =  
  × 703
BMI =  
  × 703
BMI = 21. 62
2. For Metric Units

In this method, we will take the height in meters and the weight in kilograms. Now follow the instructions below.

  1. Firstly, convert the height into meters. If it's in centimeters. For that, you can simply divide the centimeter value by 100. For Example, 1000 cm = 1000/100 = 10 m
  2. Keep the weight in kilograms.
  3. Place the height and weight value in the formula and do the math.

Let's take an example to understand the full calculation process.


Let's suppose, Height = 180 cm = 180/100 = 1.8 m
Weight = 75 kg

BMI =  
BMI =  
  = 23.15

However, if you do not wish to calculate BMI manually with the above formulas, you can use our BMI calculator to calculate it anytime and anywhere on any device.

Features of BMI Calculator

  • Free to use: The body mass index calculator is absolutely free to use and does not include any sort of hidden charges.
  • Accurate results: This tool gives accurate as well as instant results.
  • User-friendly: The UI of this tool is designed in a way to give the users a smooth and effortless experience. You just need to enter the height and weight. That's it. The tool will automatically calculate the BMI and display the BMI status within a second.
  • No prerequisites: Our calculator does not ask you to log in or signup to calculate the BMI. Also, you don't need to install anything to get calculator access. Just open it and start using it.
  • All-in-one Calculator: This tool lets you calculate the BMI of both men and women.

How to use BMI Calculator?

  1. Firstly, open the BMI Calculator on any browser.
  2. Select the type of unit in which you will be entering height and weight. There are two unit options. "US/UK Units" and "Matric Units".
  3. Then, enter the height and weight. If you select US/UK units, enter the height in feet and inches and weight in pounds. If you select Metric units, then enter the height in centimeters and weight in kilograms.
  4. Lastly, press the "Calculate" button. As a result, the calculator will display the BMI, BMI category, and health risk within seconds on your device's screen.
  5. To clear the input and output fields, use the "Reset" button.


As per many health experts, a BMI between 18.5 to 24.9 is considered ideal or low risk or healthy for men as well as women.

This tool can be used on any type of device. Whether it is mobile, tablet, laptop, or PC. Provided that the device has an active internet connection and browser support.

Open our tool on your web browser. Select the unit system. Enter the height and weight. Lastly, press the Calculate button. The results will be displayed instantly. That's it.

Most importantly, you can use this calculator to calculate BMI for both men and women. You can also use it to determine the BMI category and the various health risks associated with each such category.

It supports US/UK Units and Metric Units. Also, it has dedicated tabs for these two units. So, you first need to select the unit in which you wish to enter the inputs and can then calculate BMI.

If your BMI is 25 then you are in the overweight range. So, it's not good and you should lose some weight to reach the ideal BMI range.

No, you can not use the body mass index calculator offline. You will need a strong and stable internet connection to use it.


BMI determines the weight status in relation to the fat. Using our online tool, you can figure out the amount of excess body fat and the risks involved in carrying this extra weight. BMI calculator is useful in calculating the BMI of both men and women. Use this tool to check if you are a healthy weight for your height or not.