How do I calculate my macros?

Start with your calorie target (from a TDEE calculator). Set protein at 0.7–1.0 g per pound of body weight, fat at 0.3–0.4 g per pound, and fill the remaining calories with carbs. For a 2,000-calorie target and 160 lb person: ~160 g protein (640 cal), ~55 g fat (495 cal), and ~215 g carbs (865 cal). Adjust based on goals, hunger, and results over 2–3 weeks.

Should I track macros or just calories?

Tracking macros is better than tracking only calories because it controls body composition, not just weight. Two identical 2,000-calorie diets can produce very different results depending on whether the calories come from protein, carbs, and fat in proportions that support muscle, satiety, and performance. Macros give you control over what your weight loss (or gain) is made of.

What are the best macro ratios for cutting vs bulking?

For cutting (fat loss): protein 0.8–1.0 g/lb, fat 0.3–0.4 g/lb, carbs fill the rest — protein is high to spare muscle. For bulking (muscle gain): protein 0.8–1.0 g/lb, fat 0.3–0.4 g/lb, carbs higher to fuel training. Maintenance sits between. The biggest difference between phases is total calories; protein and fat minimums stay similar.

Is IIFYM (If It Fits Your Macros) healthy?

IIFYM can be healthy when the bulk of your intake comes from whole, nutrient-dense foods and the flexibility is used for occasional treats. The risk is treating it as a license to eat nothing but processed foods that hit your macro numbers. Prioritize protein, whole grains, fruits, vegetables, and healthy fats, then use the remaining flexibility for foods you enjoy.

Do I need a food scale to track macros?

A food scale dramatically improves accuracy, especially for calorie-dense foods like nuts, oils, and peanut butter where small measurement errors add up fast. Estimating portions can be off by 20–40%. A $15–$25 digital scale pays for itself in accurate tracking and is the single best investment for serious macro tracking.

Macro Tracking Guide: How to Count Macros for Any Goal

Counting calories tells you how much to eat. Tracking macros tells you what those calories are made of — and that distinction is the difference between losing weight and changing your body composition. Whether your goal is cutting fat, building muscle, or recomping, this guide explains what macros are, how to calculate them, and how to turn the numbers into meals you actually enjoy.

What are macronutrients?

Macronutrients are the three nutrients your body needs in large amounts: protein, carbohydrates, and fat. Each plays a distinct role and contributes a different number of calories per gram:

Macro	Calories/g	Primary roles
Protein	4	Building and repairing tissue, enzymes, immune function, satiety
Carbohydrate	4	Primary fuel especially for brain and muscle, fiber for digestion
Fat	9	Hormone production, cell membranes, absorption of fat-soluble vitamins

A fourth contributor, alcohol, provides 7 calories/g but is not an essential nutrient and is typically tracked separately. Together, the three macros must add up to your total daily calorie target.

Why track macros instead of just calories?

Two people can eat the same number of calories and end up with very different bodies. The reason is composition. A 2,000-calorie diet of 80 g protein looks and performs radically differently from a 2,000-calorie diet of 40 g protein — the first preserves muscle and controls hunger, the second risks muscle loss and constant snacking.

Tracking macros gives you control over:

Body composition: protein protects and builds muscle during a deficit; carbs fuel training.
Satiety: protein and fiber are the most filling; setting them high makes a deficit easier.
Performance: carbs support high-intensity exercise; too little fat harms hormones.
Health: adequate fat supports hormones; adequate fiber supports the gut and heart.
Flexibility: once macros are set, food choices are up to you — the basis of flexible dieting.

How to calculate your macros: step by step

Use a four-step process. The starting point is your daily calorie target — figure out your TDEE, then adjust for your goal using a calorie calculator.

Step 1 — Set calories. A maintenance target equals your TDEE; subtract 500 cal/day for ~1 lb/week fat loss; add 250–500 cal/day for a lean bulk.

Step 2 — Set protein. Aim for 0.7–1.0 g per pound of body weight (1.6–2.2 g/kg). Use the higher end in a deficit, when leaner, or when training hard.

Step 3 — Set fat. Aim for 0.3–0.4 g per pound of body weight (0.65–0.9 g/kg). Fat is essential for hormones and vitamin absorption; do not drop it too low.

Step 4 — Fill with carbs. Whatever calories remain after protein and fat go to carbohydrates.

Multiply protein and carb grams by 4 and fat grams by 9, then confirm the total lands on your calorie target.

A full worked example: 2,000 calories, 160 lb person

Imagine a 160-pound person with a 2,000-calorie daily target and a maintenance goal (the same math applies to a deficit — only the calories change).

Protein: 160 lb × 0.94 g = 150 g → 150 × 4 = 600 cal
Fat: 160 lb × 0.41 g = 65 g → 65 × 9 = 585 cal
Carbs (remainder): 2,000 − 600 − 585 = 815 cal → 815 ÷ 4 = ~204 g

For a cleaner reality-check against the brief: at 2,000 cal, 150 g protein, 65 g fat, and 175 g carbs comes to 1,965 cal — close enough to round into a workable plan. (600 + 585 + 700 = 1,885; add ~30 g carbs to land on 2,000.) The point is that the framework holds: set protein, set fat, fill with carbs.

Macros for cutting, bulking, and maintenance

The biggest difference between phases is total calories, not macro ratios. Protein and fat minimums stay similar; carbs flex the most.

Phase	Calories	Protein	Fat	Carbs
Cutting (fat loss)	TDEE − 500	0.8–1.0 g/lb	0.3–0.4 g/lb	Remainder (lower)
Maintenance	TDEE	0.7–1.0 g/lb	0.3–0.4 g/lb	Remainder
Bulking (muscle gain)	TDEE + 250–500	0.8–1.0 g/lb	0.3–0.4 g/lb	Remainder (higher)

During a cut, keep protein high to spare muscle and satiety high. During a bulk, extra carbs fuel training and recovery. In both phases, resistance training is what tells your body what to do with the calories.

Best food sources for each macro

Prioritizing whole, nutrient-dense sources makes hitting macros easier and supports overall health:

Protein: chicken and turkey breast, lean beef, fish and shellfish, eggs, Greek yogurt, cottage cheese, tofu, tempeh, legumes, protein powder.
Carbohydrates: oats, rice, potatoes, sweet potatoes, quinoa, whole-grain bread and pasta, fruit, vegetables, beans and lentils.
Fat: olive oil, avocado, nuts and seeds, nut butters, fatty fish (salmon, sardines), eggs, full-fat dairy, dark chocolate.

A reliable digital food scale is the single best investment for accurate tracking — eyeballing portions can be off by 25–40%. Amazon has reliable kitchen scales in the $15–$25 range that make a big difference to your accuracy.

Flexible dieting (IIFYM) and the 80/20 rule

"If It Fits Your Macros" (IIFYM) popularized the idea that no food is off-limits as long as your daily totals land on target. The appeal is freedom from rigid "clean eating" rules that often backfire into binges. The pitfall is treating it as a license to live on protein bars and ice cream.

A healthy middle path is the 80/20 rule: 80% of intake from whole, minimally processed foods that hit your protein, fiber, and micronutrient needs; 20% from foods you enjoy that may not be nutrient powerhouses. This balance is sustainable, supports performance and health, and removes the moral weight of "good" and "bad" foods.

Tracking tools that make it easy

You do not have to track macros by hand. A good app turns logging into a 5-minute daily habit:

MyFitnessPal — barcode scanning, massive food database, recipe import, and macro tracking on the free tier.
For training that complements your macros, Beachbody on Demand streams structured strength and cardio programs that pair nutrition with progressive workouts.

Pair the app with a kitchen scale from Amazon and you have a full setup for under $30 that can carry you through any goal phase.

Common macro tracking mistakes

Skipping the food scale. Estimates for oils, nuts, and nut butters are notoriously off.
Logging everything. Cooking oils, condiments, and "bites" can add hundreds of calories.
Setting protein too low. Under 0.7 g/lb risks muscle loss and hunger.
Treating all carbs as equal. Carbs from whole grains and fruit carry fiber and micronutrients that refined sugar does not.
Not adjusting for results. Macros are a starting estimate; revise every 2–3 weeks based on weight trend, performance, and hunger.
Forgetting liquids. Smoothies, juices, and alcohol contribute calories and carbs.

The bottom line

Macro tracking converts a vague goal like "eat better" into a concrete plan: set your calories with a calorie calculator, anchor protein at 0.7–1.0 g/lb and fat at 0.3–0.4 g/lb, and fill the rest with carbs. For a 2,000-calorie day at 160 lb, the worked plan of ~150 g protein, ~65 g fat, and ~175 g carbs fits the framework. Whether cutting, maintaining, or bulking, total calories set the phase while protein and fat minimums stay similar. Track with an app like MyFitnessPal, weigh with a kitchen scale from Amazon, train with programs like Beachbody on Demand, and follow the 80/20 rule so the plan is something you can actually live with. Macros are a tool — the result comes from consistency.