BMI Calculator Welcoming to BMIcalculator .ie.The simple and painless method to calculate the body mass index. The body mass index will tell you the extent to which you are obese,underweight or normal. For those who are conscious about their health, calculating BMI can lead to changing your lifestyle, which may otherwise prejudice present or future health. Enter your height and weight into the calculator to get the results you want in an instant.Take charge of you health today! For more BMI information, advice on healthy eating and health related services, please click the navigation bar above. What is your BMI? ( BMI ) really be important? There are numerous reasons why a medical professional takes your weight and height during your annual checkup--one of them being so they can calculate your Body Mass Index (BMI). The question is what exactly is BMI but? Do the numbers really affect you? What is BMI? Your BMI is a measurement of your height-to-weig...