Rapid Tone How many carbohydrates can you eat per day?To answer this question you must first determine how many calories you can eat per day; your daily calorie requirement. This depends on your gender, age, height and weight and your goal (keep weight, gain weight, lose weight).On this page you will find the most advanced and comprehensive BMR (Basal Metabolic Rate) calculator on the internet. Calculate what your daily calorie requirement is.Various health organizations indicate that 40% to 70% of your calories should come from carbohydrates . http://www.biorocketblasttry.com/rapid-tone/