BMI Calculator

BMI Calculator - Body Mass Index

The BMI calculator is a valuable tool that lets you know if are overweight, underweight, or just right. Your weight alone isn't enough to know, as an overweight, tall man may easily weigh more than the petite but lean woman. Body mass index or BMI helps to solve this problem by determining a ratio of your weight to your height and calculating the same number. This number will fall into one of the categories of BMIranges, which can be described as underweight, normal, overweight and overweight.

To determine how much body weight you weigh by yourself and to understand what this number indicates for you, you'll have to know:

• How to calculate BMI.
• Normal BMI.
• What are the different BMI ranges are.

How to calculate BMI

First, let's cover the math:

1. Dividing your weight (in kgs) per your measurement (in meters).
2. Divide the result by your height again for your BMI.

So the formula for body mass index is as like:

BMI is weight / height2.

Normal BMI

Our BMI calculator is easy to determine your number. Remember that BMI is an estimate of a certain amount. The results can be misleading for individuals who are muscly (such as body builders), or for those who have experienced significant loss of muscle (such in the case of elderly people).

If you're not sure whether you're in the "normal" range of muscle mass, consider using one of our more accurate calculators. A body fat calculation can pinpoint your percentage of body fat, while Lean Body Mass Calculator can tell you how much you would weigh without any fat.

BMI ranges

There are five broad ranges within the BMI scale:

• Underweight = 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," also known as BMI Prime offers a neat enhancement to our BMI calculator. It's a decimal number , where 1.0 = the upper end of your "normal BMI" range. It's an extremely simple method to see if you're overweight or not. When your BMI Prime is more than 1, you've got some weight to shed.

Use our body mass index calculator

In the upper right-hand corner of our BMI calculator, there are fields for you to input your body weight and height. Add these values and you'll be able to instantly see your BMI the same as you'll get your BMI prime (see above) and a little message telling you what the range of values you fall within.

If you're overweight , and you want to know precisely how much you'll have to shed to be in"the" healthyrange it is possible that you can also do it. Leave your height and weight in the boxes as they are. Type "0.9" into the BMI Prime box. Your weight and BMI will adjust themselves.

Tips: If your height box changes in response to changes in other boxes, then you'll need to be able to lock it. Go to the right side of the box. Select the lock icon. This will secure that value in place while you alter the values in other boxes. That's... not unless you're planning to grow taller!

Other considerations

If you're curious to find out if your metabolism is on your side on the road to being at a healthy weight, you can use our basal metabolic rate calculator (or its variation with Harris-Benedict formula). We frequently hear about factors altering our metabolism (which is it that skipping breakfast result in?) We don't hear a lot about tracking those changes. This calculator is for.

Your basal metabolic rate refers to the rate at which you are able to measure your body's metabolism once you awake in morning. In this is most efficient time for assessing your metabolism, as the day hasn't had time to warm you up!

Once you have figured out how to calculate BMI, the next most important number to determine is the ideal weight. Use the ideal calculator for weight to work this out in a jiffy.