Macros for 150 lb Women (Maintenance, Lightly Active)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 150 lb woman on a maintenance diet. Calculated from estimated lean mass, Katch-McArdle BMR, and a lightly active TDEE (light exercise 1-3 days per week).
2,023
Calories
Maintenance calories
117g
Protein
468 cal (23%)
238g
Carbs
952 cal (47%)
67g
Fat
603 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 | 113 lbs (75% of body weight) |
| Lean Mass (kg) | 51 kg |
| BMR (Katch-McArdle) | 1,472 cal/day |
| TDEE (BMR x 1.375) | 2,023 cal/day |
| Target Calories | 2,023 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 25% average body fat for women. Activity multiplier 1.375 = light exercise 1-3 days per week.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 117g | 468 | 23% |
| Carbohydrates | 238g | 952 | 47% |
| Fat | 67g | 603 | 30% |
| Total | - | 2,023 | 100% |
Protein is set at 2.3g per kg of lean body mass (113 lbs lean mass for this woman). 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 calories674 cal
- Per-meal protein39g
- Per-meal carbs79g
- Per-meal fat22g
4 Meals Per Day
- Per-meal calories506 cal
- Per-meal protein29g
- Per-meal carbs60g
- Per-meal fat17g
5 Meals Per Day
- Per-meal calories405 cal
- Per-meal protein23g
- Per-meal carbs48g
- Per-meal fat13g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 39g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 117g
- 4 x 100g chicken breast (31g each)
- 20 large eggs (6g each)
- 7 cups whole-milk Greek yogurt (17g each)
- 5 scoops protein powder (22-25g each)
Carbs: 238g
- 5 cups cooked rice (45g each)
- 4 cups dry oats (54g each)
- 9 medium sweet potatoes (26g each)
- 9 medium bananas (27g each)
Fat: 67g
- 5 tbsp olive oil (14g each)
- 4 half avocados (15g each)
- 8 tbsp peanut butter (8g fat each)
- 5 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 25% 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 female?
The calculation uses the Katch-McArdle BMR formula. A 150 lb woman with an estimated 75% lean mass (113 lbs lean) has a BMR of 1472 calories. Multiplied by 1.375 for lightly active activity (Light exercise 1-3 days per week), the TDEE is 2023 calories per day. For maintenance, the target matches TDEE at 2023 calories.
Why is protein 117g for maintenance at 150 lbs?
Protein for maintenance is set at 2.3g per kg of lean body mass. A 150 lb woman with 113 lbs of lean mass needs 117g 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 2023 calories?
At 2023 calories per day, your weight should stay stable within normal daily fluctuation (1-3 lbs of water weight). This is your estimated TDEE for lightly active activity. If you consistently gain or lose weight at this intake, your actual TDEE differs from the estimate.
Why is fat set at 67g for a maintenance diet?
Fat is set at 30% of total calories, which is 603 calories or 67g 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 1.375x estimate for lightly 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 150 lbs.
Other Weights and Goals
Previous Weight
140 lbs female maintenance lightly active
Next Weight
160 lbs female maintenance lightly active
Same Weight and Goal, Different Activity Levels
Sedentary
150 lbs, female, maintenance
Lightly Active
150 lbs, female, maintenance
Moderately Active
150 lbs, female, maintenance
Very Active
150 lbs, female, maintenance
Extra Active
150 lbs, female, 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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