Macro Counting 101
Updated July 19, 2026
Macro counting means tracking the three macronutrients — protein, carbohydrates, and fat — instead of only calories. The calorie math is fixed: protein and carbs each provide 4 kcal per gram, fat provides 9 kcal per gram (USDA Atwater general factors), so your macro targets fully determine your calorie total while telling you far more about how your day will feel.
Why track macros instead of just calories?
Because two days with identical calories can produce completely different hunger, training, and body-composition outcomes. A 2,000 kcal day with 60 g of protein and a 2,000 kcal day with 160 g of protein are not the same diet: protein preserves muscle in a deficit and is the most satiating macro. Calories decide whether you gain or lose weight; macros decide how much of it is muscle and how hungry you are on the way.
How do I set my macro targets?
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Protein first. The RDA is 0.8 g/kg of body weight for sedentary adults (National Academies); the 2016 joint position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and ACSM recommends 1.2–2.0 g/kg for active people. If you train and want a single number, 1.6 g/kg is well supported.
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Fat as a floor, not a ceiling. Keep at least ~0.5–1 g/kg for hormones and fat-soluble vitamins; the Dietary Guidelines for Americans put the acceptable range at 20–35% of calories.
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Carbs fill the rest of your calorie budget. They fuel training, so people who train more keep them higher.
How Kaloris makes macro tracking stick
Most people quit tracking because it feels like accounting. Kaloris shows your day as a plate that fills as you log, so one glance tells you what the rest of the day should look like — heavy on protein, light on fat, or done entirely. Staple foods come from USDA FNDDS, packaged foods resolve by barcode through Open Food Facts, and recipes let you log home cooking in one tap. Guest mode works with no account, free, on any device with a browser.
Frequently asked questions
How many calories are in each macronutrient?
Protein and carbohydrates each provide 4 kcal per gram and fat provides 9 kcal per gram, per the USDA's Atwater general factors. That is why a small amount of oil or butter can outweigh a large serving of vegetables in calories.
How much protein do I need per day?
The RDA for adults is 0.8 g of protein per kg of body weight per day (National Academies). For people who train regularly, the 2016 joint position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine recommends 1.2–2.0 g per kg per day.
Do I need to hit my macro targets exactly?
No. Weekly consistency matters far more than daily precision — being within roughly 5–10% of each target on average produces the same results as hitting exact numbers, and is much easier to sustain. Treat targets as a weekly average, not a daily pass/fail.
Is macro counting better than calorie counting?
Macro counting is calorie counting with more information: the same calorie total can come from very different protein, carb, and fat splits, and the split affects satiety, muscle retention, and energy. If you only track one number, track calories; macros tell you why two days with equal calories can feel completely different.