The 3 Macros Explained
Ideal Macro Ratios by Goal
| Goal | Protein | Carbs | Fat | Example (2000 cal) |
|---|---|---|---|---|
| Fat Loss | 35% | 35% | 30% | 175g P / 175g C / 67g F |
| Muscle Gain | 30% | 45% | 25% | 150g P / 225g C / 56g F |
| Maintenance | 25% | 45% | 30% | 125g P / 225g C / 67g F |
| Keto (Fat Loss) | 25% | 5% | 70% | 125g P / 25g C / 156g F |
| Athletic Performance | 25% | 55% | 20% | 125g P / 275g C / 44g F |
How to Calculate Your Macros (Step-by-Step)
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🔧 Macro & Nutrition Tools
❓ Macro Calculator FAQ
Q: What are macros and why do they matter?
A: Macros (macronutrients) are the three main nutrients your body uses for energy: protein, carbohydrates, and fat. Each has different roles — protein builds muscle and keeps you full, carbs fuel activity and the brain, fat supports hormones and nutrient absorption. Tracking macros gives you more control than just counting calories alone.
Q: What's the best macro ratio for weight loss?
A: For weight loss, most research supports higher protein (30–35%) to preserve muscle, moderate carbs (30–40%), and moderate fat (25–35%). A common starting ratio is 40% protein / 30% carbs / 30% fat. The most important factor is overall calorie deficit — ratio matters less than total calories.
Q: How much protein do I actually need?
A: For weight loss: 0.8–1g per pound of bodyweight. For muscle gain: 1–1.2g per pound. For sedentary people maintaining weight: 0.5–0.7g per pound. If you weigh 160 lbs and want to lose fat while preserving muscle, aim for 130–160g protein/day.
Q: Should I track net carbs or total carbs?
A: For general health and weight loss, total carbs is sufficient. For ketogenic diets, track net carbs (total carbs minus fiber) since fiber doesn't raise blood sugar. Net carbs under 20–50g/day keeps most people in ketosis.
Q: How do I hit my protein macros without overeating?
A: High-volume protein sources: chicken breast (31g/100g, 165 cal), egg whites (11g/100g, 52 cal), Greek yogurt (10g/100g, 59 cal), tuna (29g/100g, 130 cal), cottage cheese (11g/100g, 98 cal). Scan meals with AI to verify protein content instantly.
Q: Do I need to track macros every day forever?
A: No. Most people track for 4–12 weeks to build nutritional awareness, then maintain results intuitively. Studies show people who tracked consistently for 3 months maintained their results for 2+ years without continued tracking.
Q: What's the difference between macros for cutting vs bulking?
A: Cutting (fat loss): Calorie deficit of 300–500 cal, protein 1g/lb BW, carbs moderate, fat sufficient for hormones. Bulking (muscle gain): Calorie surplus of 200–400 cal, protein 1g/lb BW, carbs high (fuel for training), fat moderate.
Q: How do I calculate my macros for the keto diet?
A: Standard keto macros: 70% fat / 25% protein / 5% carbs. For a 1,800 cal diet: 140g fat, 112g protein, 22g net carbs. Fat is your primary fuel source — do not restrict it. Use our keto net carb calculator for precise targets.
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