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Macro Split Calculator

Calculate your ideal macro split percentages

Daily Calories

2000

Protein

150g

Carbs

200g

Fat

67g

30%
40%
30%

Total: 100.0% ✓

Protein

30.0%

Grams

150g

Calories

600

Per kg (70kg)

2.1g

Carbohydrates

40.0%

Grams

200g

Calories

800

Per kg (70kg)

2.9g

Fat

30.0%

Grams

67g

Calories

600

Per kg (70kg)

1.0g

Macro Comparison

Protein150g (600 cal)

30.0%

Carbs200g (800 cal)

40.0%

Fat67g (600 cal)

30.0%

Daily Total

Calories

2000

Protein

150g

Carbs

200g

Fat

67g

Example Calculations

1Balanced 30/40/30 Split on 2,000 Calories

Inputs

Total Daily Calories2,000
Protein30%
Carbohydrates40%
Fat30%

Result

Protein150g (600 cal)
Carbohydrates200g (800 cal)
Fat67g (600 cal)

Protein: 2000 x 30% = 600 cal / 4 = 150g. Carbs: 2000 x 40% = 800 cal / 4 = 200g. Fat: 2000 x 30% = 600 cal / 9 = 67g.

2High-Protein 40/35/25 Split on 2,500 Calories

Inputs

Total Daily Calories2,500
Protein40%
Carbohydrates35%
Fat25%

Result

Protein250g (1,000 cal)
Carbohydrates219g (875 cal)
Fat69g (625 cal)

Protein: 2500 x 40% = 1000 cal / 4 = 250g. Carbs: 2500 x 35% = 875 cal / 4 = 219g. Fat: 2500 x 25% = 625 cal / 9 = 69g.

Frequently Asked Questions

Q

What is a good macro split?

Common macro splits: Balanced (30% protein, 40% carbs, 30% fat), High-protein (40% protein, 30% carbs, 30% fat), Low-carb (30% protein, 20% carbs, 50% fat), High-carb (25% protein, 55% carbs, 20% fat). Choose based on goals and preferences.

  • Start with a balanced 30/40/30 split and adjust after 2–4 weeks based on results
  • Protein should stay at minimum 25–30% to support muscle maintenance
  • Athletes training 5+ hours/week benefit from higher carbs (45–55%)
  • Track macros for 1–2 weeks using a food scale to learn actual portion sizes
Split NameProtein / Carbs / FatBest For
Balanced30 / 40 / 30General health, maintenance
High-protein40 / 30 / 30Fat loss, muscle building
Low-carb30 / 20 / 50Keto-adjacent, insulin control
High-carb25 / 55 / 20Endurance athletes, high activity
Zone diet30 / 40 / 30Hormonal balance
Q

What macro split is best for muscle gain?

For muscle gain: 30-35% protein (1.6-2.2g per kg), 40-50% carbs (energy for workouts), 20-30% fat. Higher carbs support training volume and recovery. Example: 2000 cal = 150g protein, 250g carbs, 67g fat.

  • Eat 1.6–2.2g of protein per kg of body weight daily for optimal muscle synthesis
  • Carbs fuel workouts—eat 40–60g of carbs 1–2 hours before training
  • A 200 lb (91 kg) person building muscle needs 145–200g protein daily
  • Surplus of 250–500 calories above maintenance supports lean muscle gain
  • Post-workout meal should contain 20–40g protein and 40–80g carbs within 2 hours
Q

What macro split is best for fat loss?

For fat loss: 30-40% protein (preserves muscle), 30-40% carbs (maintains energy), 20-30% fat. Higher protein increases satiety. Low-carb (20% carbs) works for some, but balanced (40% carbs) is sustainable for most.

  • Higher protein (35–40%) increases satiety and preserves lean mass during a deficit
  • A 500-calorie daily deficit produces about 1 lb of fat loss per week
  • Keep fat at minimum 20% (0.3g per lb body weight) for hormone health
  • On a 1,600 cal fat-loss diet at 35/35/30: 140g protein, 140g carbs, 53g fat
  • Prioritize fiber-rich carbs (vegetables, whole grains) for fullness on fewer calories
Q

How do you calculate macro split from calories?

Calculate macros: Protein calories = Total × protein% ÷ 4g, Carb calories = Total × carb% ÷ 4g, Fat calories = Total × fat% ÷ 9g. Example: 2000 cal at 30/40/30 = 150g protein, 200g carbs, 67g fat.

  • Protein and carbs: 4 calories per gram; fat: 9 calories per gram
  • 2,500 cal at 30/40/30: 188g protein (750 cal), 250g carbs (1,000 cal), 83g fat (750 cal)
  • 1,800 cal at 40/35/25: 180g protein (720 cal), 158g carbs (630 cal), 50g fat (450 cal)
  • Percentages must total 100%—if protein + carbs = 70%, fat must be 30%

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Last Updated: Mar 9, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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