BMI Calculator

BMI Calculator - Body Mass Index

The BMI calculator is a helpful tool that determines whether you are obese, underweight, or just right. Your weight alone isn't enough to determine this, since tall, thin men is likely to weigh more an overweight woman who is short and slim. A body mass index or BMI, overcomes this issue by calculating a proportion in your weight to your height which gives you only one number. This number can be classified into an appropriate category within the range of BMI ranges that can be described as underweight normal, overweight as well as obese.

To calculate how much body weight you weigh by yourself and find out what your number indicates for you, you'll be required to know:

• How to calculate BMI.
• What's normal BMI.
• What are the various BMI ranges are.

How to calculate BMI

Then, let's go over the calculations:

1. Divide your weight (in kgs) with your size (in inches).
2. Divide the answer by your height and again to get your BMI.

The body mass index formula is as like:

BMI is weight/height2.

Normal BMI

Our BMI calculator is easy for you to find the number you need. Please note that BMI is an approximate estimate. It can be incorrect for those who have a lot of muscle (such as body builders), or for those who have experienced significant loss of muscle (such those who are elderly).

If you're uncertain whether or not you fall in that "normal" range of muscle mass, consider using one of our more specific calculators. A body fat calculation is able to find your percentage of body fat. In addition, using our calculator to calculate lean mass can determine how much your weight would be without fat.

BMI ranges

There are five broad intervals in the BMI scale:

• The term "underweight" means less than 18.5
• Normal weight equals 18.5 - 24.9
• Overweight = 25 - 29.9
• Obesity = 30 - 35
• Severe Obesity = 35 and more

"BMI Prime," also known as BMI Prime can be described as a handy modification to our own BMI calculator. It's a decimal figure where 1.0 is the highest point in within the "normal BMI" range. It's a simple way to determine if you're obese or not. In the event that your BMI Prime is higher than 1, then there's some weight to shed.

Making use of the calculator for body mass index

On the top of the BMI calculator are fields for you to plug in your body weight and height. Add these values, and you'll instantly have your BMI the same as it's BMI Prim (see above) as well as a brief message that will tell you which range you fall into.

If you're overweight and wish to know exactly how much weight you'll need lose in order to reach that healthy range, you can also do it. Place your height and weight in the boxes as they are and then type "0.9" into the BMI Prime box. Both your weight and BMI will adjust automatically.

Tip: If the height of your box adjusts itself in response to changes in other boxes, you'll have to be able to lock it. The right hand side of the box. Select the lock icon to hold this figure as you experiment with the numbers in other boxes. That is... except if you're planning to grow taller!

Other considerations

If you're looking to find out if your metabolism is working in your quest towards an healthy weight, take a look at the basal rate of metabolic calculator (or its variant of Harris-Benedict's formula). There are many things that can be reported as raising or lowering our metabolism (which one does skipping breakfast result in?) However, we don't hear much about monitoring those changes. That's what this calculator is to track those changes.

The basal metabolic rate of your body is the amount of activity you have in your body's metabolism once you awake in the early morning. It is also the most accurate time of the day to gauge your metabolism since the day's not had enough time to heat you up yet!

When you've figured out how to calculate BMI, the next logical figure to know is the ideal weight. Use our perfect weight calculator and figure this out in a flash.