Some people on a diet find it useful to be able to tell how much weight they have lost in proportion to body weight. This is easy to compute using a weight loss calculator.
These calculators require you to type in some data like weight, height and circumference of waist, hip and forearm. The program then calculates your weight loss percentage and gives the answer as a score. By tracking this score over the period of your weight loss efforts, you can tell how effective they are at getting you closer to your goals. Most of these online programs powering a weight loss calculator work on the same formula which is based on pre-diet weight and the number of pounds lost during the diet.
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