ROTHERMEL STRENGTH

CALORIE & MACRO CALCULATOR

Calculate your starting calorie and macronutrient targets based on your body, activity level, current goal, and protein preference.

1 YOUR INFORMATION
Not sure of your body-fat percentage? Use your best estimate. This number is used to estimate lean body mass and determine your protein target.

For additional help, refer to the Body-Fat Visual Reference in the Rothermel Strength Fat Loss System.
2 ACTIVITY LEVEL
3 CHOOSE YOUR GOAL
FAT LOSS
MAINTENANCE
WEIGHT GAIN
4 CHOOSE YOUR PROTEIN TARGET

Protein is calculated from your estimated lean body mass. Increasing your protein target will reduce carbohydrates while keeping your total calorie target the same.