Alcohol Carbs Calculator

Calculate the carbohydrate content of alcoholic drinks by type, with keto-diet context and an explanation of ethanol vs carb calories.

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Drinks

Total carbohydrates
19.9g
80 kcal from carbs
High carbohydrate content. This would likely push most low-carb or keto budgets over limit for the day.
Note: alcohol itself (ethanol) contains no carbohydrates. The carbs shown here come from residual sugars in the drink. However, ethanol still provides 7.1 kcal/g and can disrupt ketosis regardless of carb content, as the liver prioritises ethanol metabolism.

Carb values are based on typical product profiles and are estimates. Actual values vary by brand and batch. Check the product label or manufacturer data for precise figures.

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Health — Medical

Alcohol Carbs Calculator

For people following low-carbohydrate or ketogenic diets, the carbohydrate content of alcoholic drinks is often as important as the calorie count. This calculator shows the carb content of a drinking session and provides context for how different drink types fit into a low-carb dietary pattern.

Carbohydrates in alcoholic drinks

Ethanol itself contains no carbohydrates — it is neither a carbohydrate, fat, nor protein. However, most fermented and mixed alcoholic drinks contain residual carbohydrates from the source material. Beer and cider can contain significant amounts from grains and fruit sugars. Regular wine contains around 2–3 g per 100 mL; dry wines and brut champagne are lower. Spirits distilled from grain or sugar contain essentially no carbs unless mixed with a sugary beverage.

Sweet wines, dessert wines, liqueurs, and ready-to-drink alcopops are the highest-carb category — their residual sugar content can be comparable to non-alcoholic soft drinks.

Alcohol and ketosis: beyond the carbs

Even when carbohydrate content is very low — for example, a measure of neat spirits — alcohol can temporarily interrupt ketosis. The liver prioritises ethanol metabolism over fatty acid oxidation, meaning fat burning pauses while alcohol is being processed. The effect is temporary, but it can delay ketone production for several hours after consumption.

This effect is entirely separate from carbohydrate intake. Someone drinking neat spirits, with zero grams of carbohydrates, may still notice reduced blood ketone levels after drinking. Keto dieters who wish to remain in ketosis are generally advised to minimise alcohol intake regardless of carb content.

Frequently asked questions

Which alcoholic drinks are lowest in carbs?

Neat spirits — vodka, gin, whisky, rum, tequila — contain effectively zero carbohydrates. Dry white wine and brut champagne are next lowest at around 1–2 g per glass. Regular beer and cider contain the most carbs; low-carb beer variants (typically labelled as such) are formulated to reduce residual sugar after fermentation.

 Will alcohol kick me out of ketosis?

It depends on both carb content and individual response. Low-carb drinks (dry wine, spirits) are less likely to disrupt ketosis through carbohydrate intake, but ethanol itself temporarily suppresses ketone production by diverting liver metabolism toward ethanol oxidation. Most people will see reduced ketone levels for several hours after drinking, even with very low-carb choices. Tolerance to this effect may improve with metabolic adaptation.

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