Physiq: Macro Calculator

Cutting Macros: How to Calculate Your Fat Loss Targets

This guide covers how to set macros for cutting using a high protein approach.

Representative targets: 2350 calories · 216gm protein · 225gm carbs · 65gm fat.

Use the calculator below to generate your own numbers based on weight, height, age, and activity level.

Who This Is For

180-pound mans actively cutting who want strong muscle preservation during a deficit. Typically people who have been training consistently and want to lose fat without sacrificing the strength or muscle they have built.

Macro Rationale

A measured deficit of 415 calories below your estimated 2765-calorie TDEE is enough to drive consistent fat loss without triggering aggressive muscle breakdown. Protein is elevated specifically to counter the muscle-loss risk that comes with calorie restriction — it is the most important macro to protect during a cut.

High-protein macros keep protein elevated during a deficit to protect lean muscle tissue. This is the most evidence-backed approach for body-composition-focused fat loss. Higher protein also increases satiety and has a greater thermic effect than carbs or fat, making the deficit effectively slightly larger than it appears on paper.

Daily Target Calories

2350cal/day
Target2350

~15% deficit from TDEE (2765 cal) for fat loss. high protein macro split.

Daily Target Macros

216gm

Protein

216gm

225gm

Carbs

225gm

65gm

Fat

65gm

Protein: 216gm (1.2gm per lb body weight)

Sample Meal Plan

Breakfast

  • Protein Shake — 1 scoop + water (~30g)130 cal · P25 C3 F2
  • Greek Yogurt — 1 cup (~245g)120 cal · P20 C9 F0
  • Scrambled Eggs (3) — 3 large (~150g)213 cal · P18 C2 F15
Total: 463 cal · 63g P · 14g C · 17g F

Lunch

  • Grilled Chicken Breast — 6 oz (~170g)213 cal · P42 C0 F5
  • Strip Steak — 6 oz (~170g)286 cal · P40 C0 F14
  • Salmon Fillet — 6 oz (~170g)306 cal · P36 C0 F18
Total: 805 cal · 118g P · 0g C · 37g F

Dinner

  • Ribeye Steak — 8 oz (~227g)440 cal · P46 C0 F28
  • Grilled Chicken Breast — 6 oz (~170g)213 cal · P42 C0 F5
  • Steamed Broccoli — 1 cup (~91g)40 cal · P4 C6 F0
Total: 693 cal · 92g P · 6g C · 33g F

Snack

  • Protein Shake — 1 scoop + water (~30g)130 cal · P25 C3 F2
  • Greek Yogurt — 1 cup (~245g)120 cal · P20 C9 F0
Total: 250 cal · 45g P · 12g C · 2g F

Estimates. Not medical advice. Adjust portions to fit your exact targets.

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Adjustment Notes

  • • Hold your targets for at least 2 full weeks before making changes — short-term weight fluctuations are water and digestion, not fat or muscle.
  • • Adjust calories in 100–150 calorie increments, not large jumps. Small changes compound without disrupting adherence.
  • • Recalculate every 10–15 lb of bodyweight change or every 6–8 weeks.
  • • If your scale trend is flat for 2–3 weeks, reduce by ~100 calories from carbs or fats first — keep protein at current levels.
  • • Current target: 2350 cal/day. If you are losing more than 1.5 lb/week consistently, add 100 calories — excessive loss rate increases muscle breakdown risk.

Frequently Asked Questions

How many calories should a 180 lb man eat to lose fat?

A practical starting target is 2350 calories/day — a 415-calorie deficit below your estimated TDEE of 2765. This provides a meaningful signal for fat loss without being aggressive enough to risk significant muscle loss or excessive fat gain. Adjust in 100-calorie steps after 2–3 weeks of data.

How much protein should a 180 lb man eat per day?

At 180 lb, a daily target of 216gm of protein (1.20g per lb bodyweight) supports body composition goals whether cutting, building, or maintaining. Protein has a higher thermic effect than carbs or fats, keeps hunger lower than either, and directly determines how much muscle your body can build or retain. Distribute across 3–5 meals for best use — a single large protein serving has diminishing returns compared to spread intake.

Will a 180 lb man lose muscle during this 415-calorie deficit?

Muscle loss risk on a 415-calorie deficit is real but manageable. The most important protection is keeping protein at 216gm/day — elevated protein directly reduces muscle breakdown during a deficit. Continuing resistance training is the second most important factor; muscle is only retained if it is being used. A 415-calorie deficit is in a moderate range, which means weekly fat loss should be around 0.1 lbs — sustainable without requiring the body to cannibalize significant lean tissue.

How should a 180 lb man distribute 216gm of protein across meals?

Spreading 216gm across 3–5 meals maximizes muscle protein synthesis compared to front-loading or back-loading protein in 1–2 large servings. A practical starting structure: ~58gm at breakfast, ~58gm at lunch, ~71gm at dinner, and ~28gm from a snack. High-protein foods like chicken breast (31gm/100g), Greek yogurt (10gm/100g), eggs (6gm each), and cottage cheese (11gm/100g) make the target achievable without supplements.

When should a 180 lb man adjust their 2350-calorie macro target?

Adjust when your body sends a clear signal for 2–3 consecutive weeks: no scale trend movement (up or down as intended), stalled training performance, or persistent energy issues. A single bad week is noise — a consistent 3-week trend is a signal. Adjust in 100–150 calorie increments, not large jumps. At 2350 calories for a 180 lb man, a 100-calorie change represents about 4–5% of total intake — meaningful but not disruptive to your food structure.

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