FitCalc

Keto Macros Calculator: Your Daily Fat, Protein & Net Carb Targets

For a 160 lb female eating 1,700 calories on standard keto (75/20/5): 142g fat (1,275 cal), 85g protein (340 cal), 21g net carbs (85 cal). For high-protein keto (60/35/5): 113g fat, 149g protein, 21g net carbs. Keep net carbs under 20-50g to maintain ketosis.

Calculate Your Keto Macros

Personalized fat, protein & net carb targets.

Male
Female
ft
in
💻
Sedentary
Office job, minimal exercise
x1.2
🚶
Lightly Active
Light exercise 1-3 days/week
x1.375
🏃
Moderately Active
Moderate exercise 3-5 days/week
x1.55
🏋
Very Active
Hard exercise 6-7 days/week
x1.725
🔥
Extremely Active
Athlete or physical labor + training
x1.9

Daily Calories

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Fat
--g
Protein
--g
Net Carbs
--g

Standard Keto Macros at Common Calorie Levels

CaloriesFat (75%)Protein (20%)Net Carbs (5%)
1,400 cal117g70g18g
1,600 cal133g80g20g
1,800 cal150g90g23g
2,000 cal167g100g25g
2,200 cal183g110g28g
2,500 cal208g125g31g

Setting Protein on Keto

Protein is the most misunderstood keto macro. Contrary to common belief, eating too much protein does NOT kick you out of ketosis. Gluconeogenesis (converting protein to glucose) is demand-driven, not supply-driven. Set protein at:

- Sedentary: 0.6-0.8g per pound of lean body mass

- Active/lifting: 0.8-1.0g per pound of lean body mass

- Fat loss phase: 1.0-1.2g per pound of lean body mass

Tracking Net Carbs

Net carbs = Total carbs - Fiber - Erythritol (and most sugar alcohols)

| Food | Total Carbs | Fiber | Net Carbs |

|---|---|---|---| | Avocado (1 whole) | 12g | 9g | 3g | | Broccoli (1 cup) | 6g | 2.4g | 3.6g | | Almonds (1 oz) | 6g | 3.5g | 2.5g | | Spinach (1 cup raw) | 1.1g | 0.7g | 0.4g | | Cauliflower (1 cup) | 5g | 2g | 3g |
The ketogenic diet is not appropriate for everyone. People with type 1 diabetes, kidney disease, liver disease, eating disorders, or who are pregnant/breastfeeding should not follow keto without medical supervision. Consult a healthcare provider before starting any restrictive diet.
Source: Volek JS, Phinney SD. The Art and Science of Low Carbohydrate Living. Beyond Obesity LLC. 2011. ISBN: 978-0983490708.

Frequently Asked Questions

What is the ideal keto macro ratio?

Standard keto (SKD) is 70-75% fat, 20-25% protein, 5-10% net carbs. High-protein keto is 60% fat, 35% protein, 5% carbs. There is no single ideal ratio — it depends on your goals, body composition, and activity level. The most critical number is net carbs: keep them under 20-50g/day to maintain ketosis.

How do I calculate net carbs?

Net carbs = total carbohydrates minus dietary fiber minus sugar alcohols (erythritol, xylitol, etc.). Fiber and most sugar alcohols are not digested and do not raise blood sugar or insulin, so they do not affect ketosis. Example: a food with 15g total carbs, 7g fiber, and 3g erythritol has 5g net carbs.

Do I need to hit my fat macro exactly?

No. Your fat macro is an upper limit, not a target to force-feed. If you are eating keto for weight loss, your body can get remaining fat calories from stored body fat. Prioritize hitting your protein target, stay under your carb limit, and eat fat to satiety. Only eat your full fat macro if you are eating keto for maintenance or muscle gain.

Can I eat too much protein on keto?

For practical purposes, no. The fear that excess protein converts to glucose and kicks you out of ketosis (via gluconeogenesis) is a myth based on a misunderstanding. Gluconeogenesis is a demand-driven process, not supply-driven. Your body makes glucose when it needs it, not simply because protein is available. Eat adequate protein (0.8-1.2g per pound of lean mass) without fear.

How do I adjust keto macros for exercise?

If you do intense exercise (CrossFit, heavy lifting, sprints), consider targeted keto (TKD): eat 15-30g of fast-digesting carbs 30 minutes before training, then standard keto the rest of the day. This provides workout fuel without disrupting ketosis. For endurance athletes, standard keto often works well after a 2-4 week adaptation period.

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