How to Calculate Macros: A 4-Step Method With Examples

To calculate macros, set your daily calories first. Then give protein 1.6–2.2 g per kg of bodyweight and fat about 0.8 g/kg, or 25% of calories. Fill the remaining calories with carbs. Protein and carbs have 4 kcal per gram; fat has 9.

Key takeaways

• Calories come first. Macros only split a calorie target you already set.
• Protein: 1.6–2.2 g/kg to build muscle, 1.8–2.7 g/kg when dieting.
• Fat: about 0.8 g/kg, and not below roughly 20–25% of calories.
• Carbs: whatever calories are left, divided by 4.
• Don't want to count? The hand-portion method from Precision Nutrition works without tracking.

Why macros come second

Nutrition has a clear order of importance. Helms' Muscle and Strength Nutrition Pyramid puts it like this: calories, then protein, then carbs and fats. Micronutrients and fiber come next, then meal timing, then supplements.

Most people spend their energy on the bottom of that list. Get calories and protein right, and the rest is fine-tuning.

How to calculate macros and calories: the 4-step method

Step 1: Set calories

Estimate your TDEE with Mifflin–St Jeor and an activity factor. Our guide on how to calculate TDEE walks through it. Then adjust for your goal:

• Fat loss (most people): Calories vs maintenance −20 to −25%
• Lean cut (already lean): Calories vs maintenance −10 to −20%
• Recomposition: Calories vs maintenance About 0 to −10%
• Muscle gain, beginner: Calories vs maintenance +10 to +15%
• Muscle gain, intermediate+: Calories vs maintenance +5 to +10%

Step 2: Set protein

Protein (g) = bodyweight (kg) × 1.6 to 2.2 Protein kcal = protein (g) × 4

Use the higher range of 1.8–2.7 g/kg in a deficit. For more detail, see how much protein to build muscle.

Step 3: Set fat

Fat (g) = bodyweight (kg) × 0.8 (or 25% of calories ÷ 9) Fat kcal = fat (g) × 9

Don't drop below about 20–25% of calories, roughly 0.6–1 g/kg. Very low-fat diets, under 15–20%, can lower testosterone and disrupt menstrual cycles.

Step 4: Fill the rest with carbs

Carbs (g) = (total kcal − protein kcal − fat kcal) ÷ 4

Sanity-check the result against your training. These are typical daily ranges:

• Light, skill-based or fat loss: Carbs (g/kg/day) 2–3
• Strength or hypertrophy, moderate volume: Carbs (g/kg/day) 3–5
• High-volume lifting or 1 h/day endurance: Carbs (g/kg/day) 5–7
• Endurance 1–3 h/day: Carbs (g/kg/day) 6–10

How to calculate macros for muscle gain: worked example

Take an 80 kg intermediate lifter with a TDEE of about 2,720 kcal. A 5–10% surplus gives roughly 2,860–2,990 kcal. Round to 2,900.

Calories: 2,900 kcal Protein: 80 × 2.0 = 160 g → 160 × 4 = 640 kcal Fat: 25% × 2,900 = 725 kcal → 725 ÷ 9 ≈ 80 g Carbs: (2,900 − 640 − 725) ÷ 4 ≈ 385 g

That is about 4.8 g/kg of carbs, which fits the strength and hypertrophy range. A bigger surplus mostly adds fat, so keep it modest once you are past your first year.

How to calculate macros for weight loss (female example)

Take a woman who weighs 65 kg with a TDEE of about 1,885 kcal. A 20% deficit gives about 1,510 kcal. Round to 1,500.

Calories: 1,500 kcal Protein: 65 × 2.0 = 130 g → 520 kcal Fat: 65 × 0.8 = 52 g → 468 kcal Carbs: (1,500 − 520 − 468) ÷ 4 = 128 g

Carbs land near 2 g/kg, typical for a fat-loss phase. Fat sits at about 31% of calories, well above the floor.

The method is the same for men and women. Only the inputs change: bodyweight, TDEE and goal. Aim to lose 0.5–1% of bodyweight per week; see our guide to a safe rate of fat loss.

How to calculate macros for fat loss and muscle gain

Losing fat while building muscle is called body recomposition. It works best for beginners, people returning after a break and people with more body fat.

Set calories at maintenance or up to 10% below. Keep protein high, around 1.8–2.2 g/kg or more. Then set fat and carbs exactly as above.

Train hard and track waist and strength, not just the scale. Weight may barely move while your body changes.

The hand-portion method (no counting)

Not everyone wants to weigh food. Precision Nutrition's hand-portion method uses your hand as the measuring tool.

• Protein (palm): Men 2 palms, Women 1 palm
• Vegetables (fist): Men 2 fists, Women 1 fist
• Carbs (cupped hand): Men 2 cupped hands, Women 1 cupped hand
• Fat (thumb): Men 2 thumbs, Women 1 thumb

Eat 3–4 of these meals a day. Then adjust by results: add or remove a portion of carbs or fat if your weight trend is off. It suits anyone who will not count calories.

How to apply this

• Calculate TDEE and adjust it for your goal.
• Multiply bodyweight by your protein target and convert to kcal.
• Set fat at 0.8 g/kg or 25% of calories and convert to kcal.
• Subtract protein and fat calories from the total. Divide by 4 for carbs.
• Check carbs against your training type and fat against the 20–25% floor.
• Track for 2–3 weeks using a 7-day average of morning weight.
• Adjust calories by 100–200 kcal if needed, mostly from carbs or fat. Keep protein steady.
• If progress stalls for weeks, learn how to break a weight loss plateau.

FAQ

How do you calculate macros for weight loss?

Set calories about 20–25% below your TDEE. Give protein 1.8–2.7 g/kg and fat about 0.8 g/kg. Fill the remaining calories with carbs, dividing by 4 to get grams.

How do you calculate macros for muscle gain?

Eat 5–15% above maintenance, using the smaller surplus once you are past the beginner stage. Set protein at 1.6–2.2 g/kg and fat around 25% of calories. Carbs make up the rest, often 3–5 g/kg for lifters.

How do you calculate macros for weight loss as a female?

Use the same four steps with your own TDEE and bodyweight. A 65 kg woman eating 1,500 kcal might have 130 g protein, 52 g fat and 128 g carbs. Keep fat at least 20–25% of calories to protect hormone and menstrual health.

How do you calculate macros and calories together?

Calculate calories first from your TDEE and goal. Then multiply grams by 4 for protein and carbs and by 9 for fat. All three must add up to your calorie target.

Can you track macros without counting calories?

Yes. Precision Nutrition's hand-portion method uses palms for protein, fists for vegetables, cupped hands for carbs and thumbs for fat. Men start with two of each per meal and women with one, then adjust by results.

Educational content, not medical advice.

Sources

• Morton RW et al. 2018. Protein supplementation and resistance training: systematic review and meta-analysis. British Journal of Sports Medicine. https://doi.org/10.1136/bjsports-2017-097608
• Helms ER, Aragon AA, Fitschen PJ. 2014. Evidence-based recommendations for natural bodybuilding contest preparation. Journal of the International Society of Sports Nutrition. https://doi.org/10.1186/1550-2783-11-20
• Helms E, Morgan A, Valdez A. 2019. The Muscle and Strength Pyramids: Nutrition, 2nd ed.
• Precision Nutrition. Calorie control guide (hand portions). https://www.precisionnutrition.com/calorie-control-guide
• Mifflin MD, St Jeor ST, Hill LA et al. 1990. A new predictive equation for resting energy expenditure in healthy individuals. American Journal of Clinical Nutrition 51(2):241-247. https://pubmed.ncbi.nlm.nih.gov/2305711/

Macros get easier after you have done the math a few times. The Field Manual has the full step-by-step method on its formula sheet. Its knowledge checks give you practice cases with answers to check yourself.