Macros for 150 lb Men (Maintenance, Sedentary)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 150 lb man on a maintenance diet. Calculated from estimated lean mass, Katch-McArdle BMR, and a sedentary TDEE (desk job, little or no exercise).
1,891
Calories
Maintenance calories
128g
Protein
512 cal (27%)
203g
Carbs
812 cal (43%)
63g
Fat
567 cal (30%)
Eating at TDEE with zero deficit or surplus. These macros maintain your 150 lb body weight while optimizing protein for muscle retention.
How These Macros Were Calculated
| Body Weight | 150 lbs |
|---|---|
| Estimated Lean Mass | 123 lbs (82% of body weight) |
| Lean Mass (kg) | 55.8 kg |
| BMR (Katch-McArdle) | 1,575 cal/day |
| TDEE (BMR x 1.2) | 1,890 cal/day |
| Target Calories | 1,891 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 1.2 = desk job, little or no exercise.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 128g | 512 | 27% |
| Carbohydrates | 203g | 812 | 43% |
| Fat | 63g | 567 | 30% |
| Total | - | 1,891 | 100% |
Protein is set at 2.3g per kg of lean body mass (123 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 calories630 cal
- Per-meal protein43g
- Per-meal carbs68g
- Per-meal fat21g
4 Meals Per Day
- Per-meal calories473 cal
- Per-meal protein32g
- Per-meal carbs51g
- Per-meal fat16g
5 Meals Per Day
- Per-meal calories378 cal
- Per-meal protein26g
- Per-meal carbs41g
- Per-meal fat13g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 43g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 128g
- 4 x 100g chicken breast (31g each)
- 21 large eggs (6g each)
- 8 cups whole-milk Greek yogurt (17g each)
- 5 cups cottage cheese (25g each)
Carbs: 203g
- 8 medium sweet potatoes (26g each)
- 4 cups dry oats (54g each)
- 5 cups cooked lentils (40g each)
- 5 cups cooked brown rice (45g each)
Fat: 63g
- 5 tbsp olive oil (14g each)
- 4 half avocados (15g each)
- 5 oz mixed nuts (14g each)
- 5 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 150 lb male?
The calculation uses the Katch-McArdle BMR formula. A 150 lb man with an estimated 82% lean mass (123 lbs lean) has a BMR of 1575 calories. Multiplied by 1.2 for sedentary activity (Desk job, little or no exercise), the TDEE is 1890 calories per day. For maintenance, the target matches TDEE at 1891 calories.
Why is protein 128g for maintenance at 150 lbs?
Protein for maintenance is set at 2.3g per kg of lean body mass. A 150 lb man with 123 lbs of lean mass needs 128g of protein per day. At maintenance, 2.3g per kg of lean mass supports daily muscle repair and satiety.
How much weight will I change at 1891 calories?
At 1891 calories per day, your weight should stay stable within normal daily fluctuation (1-3 lbs of water weight). This is your estimated TDEE for sedentary activity. If you consistently gain or lose weight at this intake, your actual TDEE differs from the estimate.
Why is fat set at 63g for a maintenance diet?
Fat is set at 30% of total calories, which is 567 calories or 63g per day. Fat is essential for hormone production, fat-soluble vitamin absorption, and satiety. Keeping fat at 30% of calories maintains hormone function during maintenance. Dropping fat below 20% of total calories can impair testosterone, estrogen, and recovery.
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 1.2x estimate for sedentary 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 150 lbs.
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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