Enter your stats below to find out how many calories (and how much protein) you should be eating to reach your goals Weight loss calorie calculator: calculate … Hi Andy, thank you for the macros calculator as well as the in-depth article. Say i’m currently on a diet of about 2500 calories and I’ve chosen to cut and it says to consume 1800 calories a day for example. Weight Loss calculator - estimate how much you should change your diet and/or physical exercise program in order to achieve a desired weight loss target. The calculator uses a formula called the Harris-Benedict principle that can assess your Basal Metabolic Rate (BMR). How many calories should I eat to lose weight? Should I start the new diet … This formula reveals the number of calories your body needs to fulfill only the basic … We calculate protein first because it is the most important of the three macronutrients, especially while on a diet.. The calculator … Couple nice facts about protein: People who follow a high protein diet beat lose fat faster []Reduced hunger (feeling FULLER – Super important) []Higher protein diets allow you to preserve more muscle mass when you cut … It also generates a perfect customized meal for you with proper portion size to help you achieve your goal. This calorie calculator calculates the optimal calorie intake and macro-nutrient values to lose fat or gain muscle. Calculate the number of calories you need to reduce your daily intake by in order to achieve a certain weight loss.