Macros for 180 lb Men (Cutting, Sedentary)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 180 lb man on a cutting diet. Calculated from estimated lean mass, Katch-McArdle BMR, and a sedentary TDEE (desk job, little or no exercise).
1,741
Calories
~20% calorie deficit
174g
Protein
696 cal (40%)
97g
Carbs
388 cal (22%)
73g
Fat
657 cal (38%)
Running a 437 cal/day deficit (20% below TDEE). Expect ~0.87 lbs of fat loss per week while protecting 148 lbs of lean mass.
4 weeks
176.5 lbs
8 weeks
173 lbs
12 weeks
169.6 lbs
How These Macros Were Calculated
| Body Weight | 180 lbs |
|---|---|
| Estimated Lean Mass | 148 lbs (82% of body weight) |
| Lean Mass (kg) | 66.9 kg |
| BMR (Katch-McArdle) | 1,815 cal/day |
| TDEE (BMR x 1.2) | 2,178 cal/day |
| Target Calories | 1,741 cal/day |
| Daily Deficit | 437 cal/day (20% deficit) |
| Expected Weekly Change | 0.87 lbs loss per week |
BMR uses the Katch-McArdle formula (370 + 21.6 x lean mass kg), which accounts for lean mass and outperforms Harris-Benedict for accuracy across different body compositions. Lean mass estimated at 18% average body fat for men. Activity multiplier 1.2 = desk job, little or no exercise.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 174g | 696 | 40% |
| Carbohydrates | 97g | 388 | 22% |
| Fat | 73g | 657 | 38% |
| Total | - | 1,741 | 100% |
Protein is set at 2.6g per kg of lean body mass (148 lbs lean mass for this man). Fat targets 35% of target calories with a minimum safety floor applied if needed; carbs fill remaining calories, with a 50g minimum for brain function.
Meal Split Examples
3 Meals Per Day
- Per-meal calories580 cal
- Per-meal protein58g
- Per-meal carbs32g
- Per-meal fat24g
4 Meals Per Day
- Per-meal calories435 cal
- Per-meal protein44g
- Per-meal carbs24g
- Per-meal fat18g
5 Meals Per Day
- Per-meal calories348 cal
- Per-meal protein35g
- Per-meal carbs19g
- Per-meal fat15g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 58g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 174g
- 6 x 100g chicken breast (31g each)
- 29 large eggs (6g each)
- 10 cups whole-milk Greek yogurt (17g each)
- 7 cups cottage cheese (25g each)
Carbs: 97g
- 4 medium sweet potatoes (26g each)
- 2 cups dry oats (54g each)
- 2 cups cooked lentils (40g each)
- 2 cups cooked brown rice (45g each)
Fat: 73g
- 5 tbsp olive oil (14g each)
- 5 half avocados (15g each)
- 5 oz mixed nuts (14g each)
- 6 x 100g salmon fillet (13g each)
These are rough equivalents. Most meals contain a mix of all three macros. Use a food tracking app for precise logging.
These numbers use an estimated 18% body fat.
FitCommit measures your actual lean mass with an AI body scan from your phone camera, so your macros reflect your real body composition.
Frequently Asked Questions
How were the macros calculated for a 180 lb male?
The calculation uses the Katch-McArdle BMR formula. A 180 lb man with an estimated 82% lean mass (148 lbs lean) has a BMR of 1815 calories. Multiplied by 1.2 for sedentary activity (Desk job, little or no exercise), the TDEE is 2178 calories per day. For cutting, a 20% deficit brings the target to 1741 calories.
Why is protein 174g for cutting at 180 lbs?
Protein for cutting is set at 2.6g per kg of lean body mass. A 180 lb man with 148 lbs of lean mass needs 174g of protein per day. Higher protein during a cut preserves muscle tissue while in a calorie deficit.
How much weight will I lose at 1741 calories?
At 1741 calories per day, a 180 lb man should lose approximately 0.87 lbs per week. This assumes a TDEE of 2178 at sedentary activity and a deficit of 437 calories per day. Results vary based on actual metabolic rate, training load, and adherence.
Why is fat set at 73g for a cutting diet?
Fat is set at 38% of total calories, which is 657 calories or 73g per day. Fat is essential for hormone production, fat-soluble vitamin absorption, and satiety. During a deficit, fat is set at or above 35% of target calories to protect hormonal function and satiety while losing weight. Dropping fat below 20% of total calories can impair testosterone, estrogen, and recovery.
When to Recalculate These Macros
Not losing weight after 2 consistent weeks
Reduce by 100-150 cal/day, pulling from carbs first. Your actual TDEE may be slightly below the 1.2x estimate. Confirm tracking accuracy before cutting further.
Losing more than 1.5 lbs per week
Add 100-200 cal/day from carbs. At 180 lbs, faster loss increases muscle loss risk and energy crashes. The target rate is 0.5-1 lb per week on a cut.
Lost 10 or more lbs from this starting weight
Recalculate at your new weight. BMR and TDEE drop as you lose mass. Eating the macros for 180 lbs when you weigh less will slow progress.
Other Weights and Goals
Same Weight and Goal, Different Activity Levels
Related Resources
Get Your Exact Macros with FitCommit
These numbers use average body fat estimates. FitCommit's AI body scan measures your actual lean mass from your phone camera.
Precise lean mass = precise TDEE = macros that actually match your body, not an average.
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