BMI Calculator

BMI Calculator - Body Mass Index

The BMI calculator can be a very useful tool that lets you know if are obese, underweight, or just right. Your weight alone is not enough to be able to tell the difference, since an imposing, slim man can easily weigh more than an overweight woman who is short and slim. A body mass index also known as BMI is a solution to this problem by finding a proportion that compares your weight with your height and calculating a single number. The number you get will be a part of a category on the scale of BMIranges which can be defined as underweight, normal, overweight and obese.

To calculate how much body weight you weigh on your own and determine what it indicates for you, you'll need to know:

  • How to calculate BMI.
  • How do you define normal BMI.
  • What the various BMI ranges are.

How do I calculate BMI

In the beginning, let's discuss the equation:

  1. Then divide your body weight (in kilograms) by your height (in millimeters).
  2. Divide the answer by the height to calculate your BMI.

Therefore, the body mass index formula is as like:

BMI is weight/height2.

Normal BMI

Our BMI calculator is an easy task for you to figure out your ideal BMI. Be aware that BMI is an estimate of a certain amount. The result could be inaccurate for those who are well muscled (such as bodybuilders) as well as for those who have lost significant quantities of muscle (such those who are elderly).

If you're not sure whether or not your body is into your "normal" range of muscle mass, please consider using one of our more specific calculators. Body fat calculator will determine your percentage of body fat. Meanwhile, the lean mass calculator can determine how much your weight would be without fat.

BMI ranges

There are five main ranges within the BMI scale:

  • Weight = less than 18.5
  • Normal weight equals 18.5 - 24.9
  • Overweight = 25 - 29.9
  • Obesity = 30 - 35
  • Severe obesity = 35 years old or more

"BMI Prime" BMI Prime BMI Prime is handy modification to our own BMI calculator. It's a decimal figure where 1.0 is the highest point in that "normal BMI" range. It's an extremely simple method to determine if you're obese or not. If your BMI Prime is higher than 1, you've got some weight to shed.

Using our body mass index calculator

On the top of the BMI calculator, there are fields for you to input your dimensions and bodyweight. Add these values, and you'll instantly have your BMI and the BMI (see above) (see above) as well as a brief message that will tell you which the range of values you fall within.

If you're overweight and want to know the amount you'll need lose to get into that healthyrange, you could do the same. Leave your height and weight in the boxes where they are, then type "0.9" into the BMI Prime box. You weight as well as BMI will adjust automatically.

Tips: If your height box changes in response to changes in other boxes, then you'll need to close it. Select the right-hand panel of the box and select the lock icon to keep that figure in place while you experiment with the numbers in other boxes. This is... unless you plan on growing taller!

Other considerations

If you're interested in knowing whether your metabolism is in your favor on the road to a healthy weight, take a look at your basal metabolic rate calculater (or its variant of The Harris-Benedict Formula). We often hear about things which can increase or decrease our metabolism (which do skipping breakfast results in?) But we rarely hear about tracking these changes. That's what this calculator is for.

The basal metabolic rate of your body is the rate at which you are able to measure your body's metabolism at the time you first wake up in the early morning. It is also the most reliable time of the day to assess your metabolism because the day hasn't had time to get you warm yet!

If you've learned to calculate BMI, the next important figure to be aware of is the ideal weight. Use the ideal calculator for weight to work it out in a flash.

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