Macros for 140 lb Men (Maintenance, Moderately Active)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 140 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).
2,317
Calories
Maintenance calories
120g
Protein
480 cal (21%)
286g
Carbs
1144 cal (49%)
77g
Fat
693 cal (30%)
Eating at TDEE with zero deficit or surplus. These macros maintain your 140 lb body weight while optimizing protein for muscle retention.
How These Macros Were Calculated
| Body Weight | 140 lbs |
|---|---|
| Estimated Lean Mass | 115 lbs (82% of body weight) |
| Lean Mass (kg) | 52.1 kg |
| BMR (Katch-McArdle) | 1,495 cal/day |
| TDEE (BMR x 1.55) | 2,318 cal/day |
| Target Calories | 2,317 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 | 120g | 480 | 21% |
| Carbohydrates | 286g | 1144 | 49% |
| Fat | 77g | 693 | 30% |
| Total | - | 2,317 | 100% |
Protein is set at 2.3g per kg of lean body mass (115 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 calories772 cal
- Per-meal protein40g
- Per-meal carbs95g
- Per-meal fat26g
4 Meals Per Day
- Per-meal calories579 cal
- Per-meal protein30g
- Per-meal carbs72g
- Per-meal fat19g
5 Meals Per Day
- Per-meal calories463 cal
- Per-meal protein24g
- Per-meal carbs57g
- Per-meal fat15g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 40g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 120g
- 4 x 100g chicken breast (31g each)
- 20 large eggs (6g each)
- 5 scoops protein powder (22-25g each)
- 5 x 100g canned tuna (25g each)
Carbs: 286g
- 6 cups cooked rice (45g each)
- 5 cups dry oats (54g each)
- 11 medium sweet potatoes (26g each)
- 11 medium bananas (27g each)
Fat: 77g
- 6 tbsp olive oil (14g each)
- 10 tbsp peanut butter (8g fat each)
- 5 half avocados (15g each)
- 6 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 were the macros calculated for a 140 lb male?
The calculation uses the Katch-McArdle BMR formula. A 140 lb man with an estimated 82% lean mass (115 lbs lean) has a BMR of 1495 calories. Multiplied by 1.55 for moderately active activity (Moderate exercise 3-5 days per week), the TDEE is 2318 calories per day. For maintenance, the target matches TDEE at 2317 calories.
Why is protein 120g for maintenance at 140 lbs?
Protein for maintenance is set at 2.3g per kg of lean body mass. A 140 lb man with 115 lbs of lean mass needs 120g 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 2317 calories?
At 2317 calories per day, your weight should stay stable within normal daily fluctuation (1-3 lbs of water weight). This is your estimated TDEE for moderately active activity. If you consistently gain or lose weight at this intake, your actual TDEE differs from the estimate.
Why is fat set at 77g for a maintenance diet?
Fat is set at 30% of total calories, which is 693 calories or 77g 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 1.55x 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 140 lbs.
Other Weights and Goals
Same Weight and Goal, Different Activity Levels
Sedentary
140 lbs, male, maintenance
Lightly Active
140 lbs, male, maintenance
Moderately Active
140 lbs, male, maintenance
Very Active
140 lbs, male, maintenance
Extra Active
140 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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