Macros for 180 lb Men (Maintenance, Moderately Active)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 180 lb man on a maintenance diet. Calculated from estimated lean mass, Katch-McArdle BMR, and a moderately active TDEE (moderate exercise 3-5 days per week).
2,814
Calories
Maintenance calories
154g
Protein
616 cal (22%)
338g
Carbs
1352 cal (48%)
94g
Fat
846 cal (30%)
Eating at TDEE with zero deficit or surplus. These macros maintain your 180 lb body weight while optimizing protein for muscle retention.
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 1.55) | 2,813 cal/day |
| Target Calories | 2,814 cal/day |
| Calorie Change | None (maintenance) |
| Expected Weekly Change | Stable weight |
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 1.55 = moderate exercise 3-5 days per week.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 154g | 616 | 22% |
| Carbohydrates | 338g | 1352 | 48% |
| Fat | 94g | 846 | 30% |
| Total | - | 2,814 | 100% |
Protein is set at 2.3g per kg of lean body mass (148 lbs lean mass for this man). Fat targets 30% 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 calories938 cal
- Per-meal protein51g
- Per-meal carbs113g
- Per-meal fat31g
4 Meals Per Day
- Per-meal calories704 cal
- Per-meal protein39g
- Per-meal carbs85g
- Per-meal fat24g
5 Meals Per Day
- Per-meal calories563 cal
- Per-meal protein31g
- Per-meal carbs68g
- Per-meal fat19g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 51g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 154g
- 5 x 100g chicken breast (31g each)
- 26 large eggs (6g each)
- 7 scoops protein powder (22-25g each)
- 6 x 100g canned tuna (25g each)
Carbs: 338g
- 8 cups cooked rice (45g each)
- 6 cups dry oats (54g each)
- 13 medium sweet potatoes (26g each)
- 13 medium bananas (27g each)
Fat: 94g
- 7 tbsp olive oil (14g each)
- 12 tbsp peanut butter (8g fat each)
- 6 half avocados (15g each)
- 7 oz almonds (14g 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 do I split 154g of protein across meals?
Across 3 meals, each meal needs about 51g of protein. Across 5 meals or snacks, each needs about 31g. Research shows protein synthesis is maximized with 30-40g per meal for most people. 51g per meal in 3 meals is within the optimal 30-40g range.
What are 338g of carbs used for in a maintenance diet?
The 338g of carbs provides 1352 calories for workouts and brain function. Carbohydrates replenish muscle glycogen after training, supporting performance and recovery. At maintenance, 338g of carbs fuels daily activity at a sustainable level without gain or loss.
Should I recalculate my macros as I track weight?
At maintenance, recalculate your TDEE every 4-8 weeks if your weight shifts more than 5 lbs consistently. Lean mass changes affect calorie needs.
What foods hit 154g protein, 94g fat, and 338g carbs?
Protein sources for 154g: roughly 5 x 100g portions of chicken breast (31g protein each), or 26 eggs (6g each), combined with Greek yogurt or protein powder. Fat sources for 94g: about 7 tablespoons of olive oil or peanut butter. Carb sources for 338g: roughly 8 cups of cooked rice (45g each) or 13 cups of oats (27g each). A food tracking app is the most accurate way to hit these targets.
When to Recalculate These Macros
Weight trending upward over 2 weeks
Reduce by 100-150 cal/day from carbs. Your actual TDEE is slightly below the 1.55x estimate for moderately active activity.
Weight trending downward over 2 weeks
Add 100-150 cal/day from carbs or fat. You may be more active than the multiplier accounts for, or your metabolism has adapted upward.
Activity level has changed significantly
Switch to the matching activity level using the selector above. The difference between sedentary and moderately active can be 300-500 cal/day at 180 lbs.
Other Weights and Goals
Same Weight and Goal, Different Activity Levels
Sedentary
180 lbs, male, maintenance
Lightly Active
180 lbs, male, maintenance
Moderately Active
180 lbs, male, maintenance
Very Active
180 lbs, male, maintenance
Extra Active
180 lbs, male, maintenance
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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