TDEE is the most important bit of information available to us when trying to gain muscle or burn fat and lose weight, because it represents the total number of calories we burn.

In order to burn fat, we must eat less calories that this our TDEE which will force your body to use your stored body fat as fuel.

This is why when counting macros, we always base our calorie intake on our TDEE calculator numbers, and not BMR, like so many misinformed coaches do.

Use the IIFYM TDEE Calculator below to calculate how many calories your body needs to function at your current activity rate.

Our IIFYM Macro Calculator takes the guess work out of calculating macros for immediate fat loss.. All you have to do is enter your details, select your goals and retrieve your macros. Our diet calculator is the most accurate macro calculator there is, making tracking macros & IIFYM fat loss very easy.