Keto — CHO máx (g)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
This calculator determines the maximum daily net carbohydrate limit to maintain nutritional ketosis. The value is set between 20 and 50 grams, the standard range for a ketogenic diet. The result is obtained by subtracting fiber and sugar alcohols from total carbohydrates, as recommended by experts. The tool is useful for beginners or those needing to adjust intake to achieve ketosis.
The calculation is simple: you enter your goal (between 20 and 50 g) and the calculator confirms the maximum net carbs. No complex formula, just a personalized limit. Ketosis occurs when the body uses fat as its primary energy source, requiring strict carbohydrate restriction. This number serves as a daily guide for meal planning.
Use this calculator when starting a ketogenic diet to establish your carb ceiling. It is also helpful after an adaptation period when you want to adjust your limit based on tolerance. It can be used by athletes or people with type 2 diabetes seeking glycemic control. The result helps plan foods like low-carb vegetables, nuts, and dairy.
Caution: the 20-50 g range is a general recommendation; some individuals may need lower values to enter ketosis. Consult a dietitian before starting the diet, especially if you have medical conditions. Remember that net carbs exclude fiber and sugar alcohols, but these may still affect blood sugar in some people. Monitor symptoms and adjust as needed.
Frequently asked questions
What are net carbohydrates?
Net carbs are total carbohydrates minus fiber and sugar alcohols. On a ketogenic diet, only net carbs count toward the daily limit.
Can I consume less than 20 g of carbs per day?
Yes, but it's not necessary for most people. Values below 20 g may induce faster ketosis but increase the risk of nutritional deficiencies.
What is the difference between 20 g and 50 g of carbs?
20 g is more restrictive, ensuring ketosis even for beginners. 50 g allows more vegetable variety and is suitable for those already adapted.
Does the calculator consider fiber and sugar alcohols?
No, it only sets the maximum net carb limit. You must manually calculate net carbs from the foods you eat.
Do I need medical supervision to use this calculator?
It is recommended to consult a dietitian or doctor before starting a ketogenic diet, especially if you have diabetes, kidney issues, or are pregnant.