Weight Loss Percentage Calculator

Love it or hate it, NBC's The Biggest Loser sure does get people interested in weight loss. A lot of you want to know how to calculate the percentage of weight loss like they do on the show. So, I've created this handy weight loss calculator for you to check your percentage of weight loss.

Note: Please keep in mind, this calculates total weight loss including muscle. A better indicator of how you're doing would be to calculate how much body fat you're losing. It's the fat you want to lose, not the muscle!

Use the FitWatch Body Fat Percentage Calculator to estimate how much body fat you're losing.