Paleo Diet Macros Calculator

A Paleo diet macro calculator estimates your daily calorie needs using the Mifflin-St Jeor formula based on your age, gender, weight, height, and activity level. It then divides those calories into the Paleo-recommended macronutrient ratios — typically higher in protein and fat, with limited carbohydrates — adjusted for your specific goal such as weight loss, maintenance, or muscle gain.

Macros (macronutrients) are the three major nutrient categories your body uses for energy: protein, fat, and carbohydrates. On the Paleo diet, tracking macros matters because the diet intentionally shifts the balance away from refined carbs toward whole-food proteins and healthy fats. Getting the right ratio helps control hunger, stabilize blood sugar, and support your body composition goals.

A typical Paleo macro split is approximately 30% protein, 40% fat, and 30% carbohydrates — though this shifts depending on your goal. For weight loss, carbs may drop to around 20–25% with fat increased accordingly. For muscle gain, protein is pushed toward 35% of total calories. This calculator adjusts those ratios automatically based on your selected goal.

Yes. The Paleo diet supports weight loss primarily by eliminating processed foods, refined sugars, and grains, which reduces overall calorie intake and improves satiety. The higher protein content preserves lean muscle while the healthy fats keep you fuller for longer. A calorie deficit remains the core driver, which this calculator establishes based on your inputs.

Absolutely. A more active person burns significantly more calories and requires more total macros to fuel recovery and performance. This calculator applies activity multipliers to your base metabolic rate (BMR) — ranging from 1.2 for sedentary individuals up to 1.9 for extremely active ones — so your protein, fat, and carb targets reflect your actual energy expenditure.

Yes, muscle gain is achievable on Paleo as long as you consume a slight calorie surplus and sufficient protein — generally 1.6–2.2 g of protein per kg of body weight per day. The Paleo diet provides high-quality protein sources like grass-fed meat, eggs, and fish, which are ideal for muscle protein synthesis. This calculator sets a controlled surplus and higher protein allocation when you select the muscle gain goal.

Most people do well on 3 meals per day on Paleo, since the high protein and fat content keeps hunger well-managed between meals. However, very active individuals or those with higher calorie needs may prefer 4–5 meals. This calculator lets you choose your meal frequency and distributes your daily macros evenly across each meal.

Yes, the Paleo diet is beginner-friendly because it focuses on whole, unprocessed foods rather than strict calorie counting. Using a macro calculator gives beginners a clear starting point — concrete gram targets for protein, fat, and carbs — which removes the guesswork and makes food selection much more straightforward when first transitioning to Paleo.