FitCalc

Keto Calculator: Your Personalized Ketogenic Diet Macros

For a 175 lb male at 2,200 calories on a standard ketogenic diet (75/20/5): 183g fat (1,650 cal), 110g protein (440 cal), 28g net carbs (110 cal). To enter ketosis, keep net carbs below 20-50g per day. Most people achieve ketosis within 2-7 days of carb restriction.

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

--

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

Keto Macro Ratios

Keto TypeFatProteinNet CarbsUse Case
Standard (SKD)70-75%20-25%5-10%Weight loss, general health
High Protein60-65%30-35%5%Athletes, muscle preservation
Targeted (TKD)65-70%20-25%10-15%Pre-workout carbs for intense training
Therapeutic80-90%6-10%2-4%Epilepsy, under medical supervision

Net Carbs vs Total Carbs

On keto, track net carbs = total carbs - fiber - sugar alcohols. Fiber and most sugar alcohols do not raise blood sugar or affect ketosis. Example: a food with 10g total carbs, 4g fiber, and 2g erythritol has 4g net carbs.

Common Keto-Friendly Foods

FoodServingNet CarbsFatProtein
Avocado1 medium3g21g3g
Eggs2 large1g10g12g
Salmon6 oz0g22g34g
Almonds1 oz2.5g14g6g
Cheddar cheese1 oz0.4g9g7g
Olive oil1 tbsp0g14g0g
Broccoli1 cup4g0g3g
Ground beef (80/20)4 oz0g23g19g
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. This is not medical advice.
Source: Paoli A, Rubini A, Volek JS, Grimaldi KA. Beyond weight loss: a review of the therapeutic uses of very-low-carbohydrate (ketogenic) diets. Eur J Clin Nutr. 2013;67(8):789-796. doi:10.1038/ejcn.2013.116

Frequently Asked Questions

How many carbs can I eat on keto?

Most people enter and maintain ketosis with 20-50g of net carbs per day. Stricter adherence (under 20g) produces faster ketosis. Some active individuals can tolerate up to 50g while staying in ketosis. Start at 20g for the first 2-4 weeks, then experiment with gradual increases while monitoring ketone levels.

How long does it take to get into ketosis?

Most people enter ketosis within 2-7 days of restricting carbs to under 20-50g per day. Factors affecting speed: prior carb intake, activity level, and individual metabolism. Exercise accelerates the transition by depleting glycogen stores. Signs of ketosis include increased thirst, fruity breath, reduced appetite, and elevated ketone levels.

How much protein should I eat on keto?

Eat 0.6-1.0g of protein per pound of lean body mass (not total body weight). Too little protein causes muscle loss; contrary to popular belief, moderate-to-high protein intake does not kick you out of ketosis. Gluconeogenesis (protein-to-glucose conversion) is demand-driven, not supply-driven. Prioritize hitting your protein target before filling the rest with fat.

Will keto slow my metabolism?

Short-term metabolic studies suggest keto may slightly increase resting metabolic rate (by 100-200 cal/day) compared to high-carb diets at the same calorie level, possibly due to the thermic effect of protein and the metabolic cost of ketogenesis. However, any calorie deficit — keto or not — will eventually produce some metabolic adaptation. Keto is not immune to this.

Is keto safe long-term?

For most healthy adults, ketogenic diets appear safe for 1-2 years based on available evidence. Potential concerns include micronutrient deficiencies (magnesium, potassium, B vitamins), kidney stones (rare), and elevated LDL cholesterol in some individuals. People with kidney disease, liver disease, pancreatitis, or type 1 diabetes should not follow keto without medical supervision.

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