BMI calculator
The first step of any weight loss program is an assessment of one's body fat content and the calculation of how much body fat should be lost. There is, in reality, no such thing as a 'healthy weight' – but there is a healthy body fat limit. A consultation with a GP is the ideal way of ascertaining one's level of body fat, and this should be conducted prior to weight loss in any case as one's medical history and personal circumstances may need to be taken into account when determining a safe, healthy weight loss program.
The body mass index is a measurement of body fat, which gives a roughly accurate picture. It does not, however, take into account muscle tone or bone density, and is not suitable for children, the elderly or pregnant women. The index takes the height and weight and calculates the current level of body fat based on these figures. It goes without saying that these figures will not always give an accurate picture of the situation, and a GP will always be better placed to answer this question. The BMI Calculator does give a more roughly accurate picture than many other scales.
BMI is calculated according to the formula [weight] / [height], where height and weight can be entered in imperial or metric measurements – but they should both be entered using the same measurements.
A score of between 20 and 25 is regarded as normal and healthy; less than 20 indicates the individual is underweight; over 25 is overweight and over 30 is obese. People who score under 20 or over 30 should seek help from the GP or physician.