In order to use a BMI calculator you will need to know Lumaslim your weight in pounds and your height in inches. Then all you have to do is to enter those into the computer or look them up on the chart. You will get a number that is ideally somewhere around twenty five, if it is a lot higher or lower you are either very overweight or very underweight. That being said there are reasons that your results may not be accurate so don't panic.People who have a lot of muscle or who are taller than six feet will not get accurate results from a BMI calculator. This is because the results are based on an average sized person with an average amount of muscle. If you are not average the results that you get will not be all that useful. That being the case if you are tall or you have a lot of muscle it is probably best to not use a BMI calculator.
It is important to understand that the numbers that you get from a BMI calculator are not in themselves particularly meaningful. It is really just a simple way to assess large groups of people to tell who is overweight and who is not. They were designed mainly to be used by the army for recruitment purposes so they could tell quickly if a potential recruit was at his ideal weight. There is some value to using your body mass index to track your weight loss progress but don't put too much stock in the results that you get.A body mass index calculator can be a useful tool in helping you to lose weight, as long as you use it properly. The most important thing is to understand what the results are telling you and what the limitations are. As long as you do this you should find that you can get a lot of use out of a BMI calculator.