Macros for 170 lb Women (Maintenance, Extra Active)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 170 lb woman on a maintenance diet. Calculated from estimated lean mass, Katch-McArdle BMR, and a extra active TDEE (very hard exercise and physical job).
3,075
Calories
Maintenance calories
133g
Protein
532 cal (17%)
404g
Carbs
1616 cal (53%)
103g
Fat
927 cal (30%)
Eating at TDEE with zero deficit or surplus. These macros maintain your 170 lb body weight while optimizing protein for muscle retention.
How These Macros Were Calculated
| Body Weight | 170 lbs |
|---|---|
| Estimated Lean Mass | 128 lbs (75% of body weight) |
| Lean Mass (kg) | 57.8 kg |
| BMR (Katch-McArdle) | 1,618 cal/day |
| TDEE (BMR x 1.9) | 3,075 cal/day |
| Target Calories | 3,075 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 1.9 = very hard exercise and physical job.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 133g | 532 | 17% |
| Carbohydrates | 404g | 1616 | 53% |
| Fat | 103g | 927 | 30% |
| Total | - | 3,075 | 100% |
Protein is set at 2.3g per kg of lean body mass (128 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 calories1,025 cal
- Per-meal protein44g
- Per-meal carbs135g
- Per-meal fat34g
4 Meals Per Day
- Per-meal calories769 cal
- Per-meal protein33g
- Per-meal carbs101g
- Per-meal fat26g
5 Meals Per Day
- Per-meal calories615 cal
- Per-meal protein27g
- Per-meal carbs81g
- Per-meal fat21g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 44g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 133g
- 6 scoops protein powder (22-25g each)
- 5 x 100g cooked salmon fillet (25g each)
- 4 x 100g chicken breast (31g each)
- 5 x 100g lean ground beef (26g each)
Carbs: 404g
- 9 cups cooked white rice (45g each)
- 58 rice cakes (7g each)
- 15 medium bananas (27g each)
- 22 Medjool dates (18g each)
Fat: 103g
- 7 tbsp olive oil (14g each)
- 11 tbsp almond butter (9g fat each)
- 5 oz macadamia nuts (21g each)
- 7 tbsp coconut oil (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
Should I eat more on training days at 3075 calories?
Cycling calories is not necessary for most people. Hitting your daily target consistently produces better results than complex cycling protocols. If you want to cycle, shift 10-15% of daily calories from rest days to training days while keeping the weekly total the same. For example, add 308 calories on training days and subtract 308 on rest days. Your weekly calorie total stays fixed.
How were the macros calculated for a 170 lb female?
The calculation uses the Katch-McArdle BMR formula. A 170 lb woman with an estimated 75% lean mass (128 lbs lean) has a BMR of 1618 calories. Multiplied by 1.9 for extra active activity (Very hard exercise and physical job), the TDEE is 3075 calories per day. For maintenance, the target matches TDEE at 3075 calories.
Why is protein 133g for maintenance at 170 lbs?
Protein for maintenance is set at 2.3g per kg of lean body mass. A 170 lb woman with 128 lbs of lean mass needs 133g 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 3075 calories?
At 3075 calories per day, your weight should stay stable within normal daily fluctuation (1-3 lbs of water weight). This is your estimated TDEE for extra active activity. If you consistently gain or lose weight at this intake, your actual TDEE differs from the estimate.
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 1.9x estimate for extra 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 170 lbs.
Other Weights and Goals
Previous Weight
160 lbs female maintenance extra active
Next Weight
180 lbs female maintenance extra active
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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