How to Calculate Your Macro Split
Quick Answer: Common Macro Splits
| Goal | Protein | Carbs | Fat |
|---|---|---|---|
| Balanced (general health) | 30% | 40% | 30% |
| Fat loss (muscle preserving) | 35% | 35% | 30% |
| Muscle gain | 30% | 45% | 25% |
| Low carbohydrate | 35% | 20% | 45% |
| Ketogenic | 25% | 5% | 70% |
1 gram protein = 4 calories | 1 gram carbs = 4 calories | 1 gram fat = 9 calories
Macronutrients, shortened to macros, are the three primary energy-providing nutrients: protein, carbohydrates and fat. Once you know your daily calorie target, splitting those calories into the right macro ratios helps you reach your specific goal more effectively. Use the Macro Calculator on CalConvs to get your personalised gram targets instantly.
Step 1: Find Your Daily Calorie Target
Before calculating macros, you need your daily calorie target. Find your TDEE using the TDEE Calculator and then adjust for your goal: eat below TDEE to lose fat, at TDEE to maintain, above TDEE to gain muscle.
Step 2: Choose Your Macro Ratio
| Goal | Protein | Carbohydrates | Fat |
|---|---|---|---|
| General health and weight maintenance | 30% | 40% | 30% |
| Fat loss while preserving muscle | 35% | 35% | 30% |
| Muscle building (hypertrophy) | 25 to 30% | 45 to 50% | 20 to 25% |
| Low carbohydrate diet | 30 to 35% | 15 to 20% | 45 to 55% |
| Ketogenic diet | 20 to 25% | 5% or under | 65 to 75% |
| Endurance athlete | 20 to 25% | 55 to 65% | 15 to 20% |
Step 3: Convert Percentages to Grams
- Protein grams = (Daily calories x Protein%) / 4
- Carbohydrate grams = (Daily calories x Carb%) / 4
- Fat grams = (Daily calories x Fat%) / 9
Example: 2,000 calorie daily target with 30/40/30 split
- Protein: (2,000 x 0.30) / 4 = 150 grams
- Carbs: (2,000 x 0.40) / 4 = 200 grams
- Fat: (2,000 x 0.30) / 9 = 67 grams
Daily Macro Targets by Calorie Level (30/40/30 Split)
| Daily Calories | Protein (30%) | Carbs (40%) | Fat (30%) |
|---|---|---|---|
| 1,500 | 113 g | 150 g | 50 g |
| 1,800 | 135 g | 180 g | 60 g |
| 2,000 | 150 g | 200 g | 67 g |
| 2,200 | 165 g | 220 g | 73 g |
| 2,500 | 188 g | 250 g | 83 g |
| 2,800 | 210 g | 280 g | 93 g |
| 3,000 | 225 g | 300 g | 100 g |
Regional Dietary Context
- United States and Australia: High protein diets are popular and well-supported by food culture. High availability of lean meats, dairy and protein supplements makes hitting protein targets practical.
- United Kingdom: Balanced diet approach promoted by the NHS Eatwell Guide: roughly 50% carbs, 20 to 25% protein, 25 to 30% fat.
- India and Pakistan: Traditional diets are often higher in carbohydrates (rice, roti, lentils) and lower in animal protein. Vegetarian and vegan populations need to plan plant-based protein sources carefully.
- Middle East (UAE, Saudi Arabia): Traditional diets include lamb, chicken and fish with rice and flatbreads. Modern urban diets trend toward higher protein for fitness goals.
Frequently Asked Questions
What is the best macro split for weight loss?
A split of 35% protein, 35% carbohydrates and 30% fat works well for most people during a calorie deficit. Higher protein helps preserve muscle while losing fat, keeps hunger more manageable and has the highest thermic effect.
Do macros matter more than calories?
Calories determine whether you gain or lose weight. Macros determine your body composition within that weight change. In a calorie deficit, high protein intake determines whether you lose primarily fat or a combination of fat and muscle. Both calorie balance and macro distribution matter for optimal results.
How many grams of protein do I need to build muscle?
Research consistently shows that 1.6 to 2.2 grams of protein per kilogram of body weight is sufficient to maximise muscle protein synthesis in most strength-training adults. Going above 2.2 grams per kg does not provide additional muscle-building benefit for most people.
Related Tools
- Macro Calculator: protein, carb and fat targets from your calorie goal
- TDEE Calculator: total daily energy expenditure
- Protein Calculator: personalised protein target
- Calorie Calculator: daily calorie needs by goal