Macros Calculator
Your calorie target
25% protein, 50% carbs, 25% fat
Protein
125g
25% (500 cal)
Carbohydrates
250g
50% (1000 cal)
Fat
56g
25% (500 cal)
Macro Distribution
Compare Macro Splits
| Diet Type | Protein | Carbs | Fat |
|---|---|---|---|
| Balanced | 125g | 250g | 56g |
| Low Carb | 150g | 125g | 100g |
| High Protein | 200g | 150g | 67g |
| Ketogenic | 125g | 25g | 156g |
Protein Sources
- Chicken breast: 31g per 100g
- Greek yogurt: 10g per 100g
- Eggs: 6g per egg
- Tofu: 8g per 100g
Healthy Fat Sources
- Avocado: 15g per medium
- Almonds: 14g per 28g
- Olive oil: 14g per tbsp
- Salmon: 13g per 100g
About Macronutrients
- Protein (4 cal/g): Essential for muscle repair, immune function, and satiety
- Carbs (4 cal/g): Primary energy source for brain and muscles
- Fat (9 cal/g): Essential for hormones, nutrient absorption, and energy
- Choose the ratio that fits your lifestyle and goals - there's no one-size-fits-all
About the Macros Calculator
The Macros Calculator breaks a daily calorie target down into grams of the three macronutrients: protein, carbohydrates, and fat. It first needs a total calorie goal, then applies percentage splits to each macro and converts those calories into grams using the energy density of each nutrient. This turns an abstract calorie number into a concrete, plate-level eating plan.
The conversions rely on fixed energy values: protein and carbohydrates each provide about 4 calories per gram, while fat provides about 9 calories per gram. A common balanced split is 30 percent protein, 40 percent carbohydrate, and 30 percent fat, but the calculator lets you adjust ratios for goals like muscle gain (higher protein), low-carb or ketogenic eating (very low carbohydrate, high fat), or endurance training (higher carbohydrate). It pairs directly with the Calorie Calculator and TDEE Calculator, which supply the calorie target it divides.
Macro tracking matters because not all calories behave the same way for body composition. Adequate protein preserves muscle during a deficit and increases satiety, carbohydrates fuel high-intensity training and recovery, and dietary fat supports hormones and the absorption of fat-soluble vitamins. Dialing in the ratio rather than just the calorie total often produces better results for the same total intake.
A practical starting point is to set protein first, around 0.7 to 1 gram per pound of body weight, then allocate the remaining calories between carbohydrates and fat to taste and training needs. Track for a couple of weeks before judging results, and adjust carbohydrates up around hard training days. Hitting protein consistently is usually more impactful than precisely splitting carbs and fat.
Frequently asked questions
- How many calories are in each macronutrient?
- Protein and carbohydrates each contain about 4 calories per gram, and fat contains about 9 calories per gram. The calculator uses these values to convert percentage splits into grams.
- What macro split should I use to build muscle?
- Prioritize protein, often around 0.7 to 1 gram per pound of body weight, then fill remaining calories with carbohydrates to fuel training and a moderate amount of fat. A slight calorie surplus supports muscle gain.
- Do I need a calorie target before calculating macros?
- Yes. Macros are a division of total calories, so you need a daily calorie goal first. Use a calorie or TDEE calculator to set that number, then split it across the three macros.
- Which macro matters most for fat loss?
- Protein is usually the priority during fat loss because it preserves muscle and increases fullness. Once protein is set, carbohydrate and fat can be balanced to personal preference and energy needs.