The weight tracker allows you to put your current weight, heights, and your weight goals into an excel form. Then the form will calculate how long it will take you to achieve your goals.
Also, there is a form that allows you to add your weight as often as you would like to weigh. Then it will calculate your change automatically.
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The BMI chart allows you to visualize where your BMI should be. There are many things that effect you BMI, so this is just the average.