Curious about the carbohydrate content of your favorite cocktails? This calculator estimates the carbs per 100 grams (and per serving) of a mixed drink based on the type and amount of each ingredient. Whether you're tracking macros, following a low-carb diet, or just want to make smarter drink choices, this tool gives you a quick, data-driven estimate.
Simply select your base spirit, mixer, and any sweetener or fruit juice, enter the amounts in milliliters or ounces, and the calculator will compute the total carbs, sugar, and net carbs per 100g. It also breaks down the contribution of each ingredient, so you can see exactly where the carbs come from. Perfect for keto dieters, diabetics, and anyone counting carbohydrates.
Note that actual carb values can vary by brand and recipe, but the estimates are based on standard USDA nutrition data and common cocktail proportions. Use this as a helpful guide, not a medical or nutritional prescription.
🍸 Cocktail Carb Calculator
Estimate carbs per 100g and per serving for your mixed drink.
Base Spirit
Mixer
Sweetener / Extra (optional)
Options
Ingredient breakdown
How to Use This Tool
Enter the amount of your base spirit (e.g., vodka, gin, rum) and your mixer (e.g., tonic, cola, juice) in milliliters or ounces. Optionally add a sweetener or fruit garnish. The calculator will estimate the total carbohydrates, sugar, and carbs per 100 grams of the final drink. Use the checkboxes to show net carbs (though most cocktail ingredients have negligible fiber) and to display the per-serving total.
For best results, measure your ingredients accurately. A standard shot is about 44 ml (1.5 oz), and a typical highball uses 120–180 ml of mixer. If you're using a recipe with multiple mixers, add them one at a time or combine their amounts manually.
How It Works
The calculator uses standard USDA nutrition data for common ingredients. Pure spirits like vodka, gin, rum, whiskey, and tequila contain essentially zero carbohydrates (0 g per 100 ml). Mixers vary widely: tonic water has about 9 g per 100 ml, cola about 10.5 g, orange juice about 10 g, and cranberry juice about 12 g. Simple syrup is very high at roughly 67 g per 100 ml.
The total carbs are calculated by multiplying each ingredient's volume by its carb density, then summing. To get carbs per 100 g, we divide total carbs by the total weight (assuming a density of 1 g/ml, which is a reasonable approximation for most drinks) and multiply by 100. Sugar is estimated similarly, using the sugar content of each ingredient.
Worked Examples
Example 1: Vodka Soda — 44 ml vodka (0 g carbs) + 120 ml soda water (0 g carbs) = 0 g total carbs, 0 g per 100 g. A great low-carb choice.
Example 2: Rum and Coke — 44 ml rum (0 g) + 180 ml cola (10.5 g/100 ml) = 18.9 g carbs. Total weight ~224 g, so carbs per 100 g ≈ 8.4 g.
Example 3: Margarita — 44 ml tequila (0 g) + 30 ml triple sec (30 g/100 ml = 9 g) + 30 ml lime juice (10 g/100 ml = 3 g) = 12 g carbs. Total weight ~104 g, so carbs per 100 g ≈ 11.5 g.
Tips & Best Practices
- Choose zero-carb mixers like soda water, club soda, or diet tonic to keep carbs low.
- Be mindful of fruit juices and syrups — they add significant sugar and carbs.
- Use a jigger or measuring cup for accuracy, especially when tracking macros.
- Remember that alcohol itself contains calories (7 kcal/g) but no carbs, so carb counts don't reflect total calorie impact.
Factors Affecting Accuracy
Actual carb content can vary by brand and recipe. Some tonic waters are diet or low-calorie, and some juices have added sugar. The density of the drink is assumed to be 1 g/ml, which is close for most cocktails but may differ slightly for syrups or cream-based drinks. For precise tracking, check nutrition labels or use a food scale.
Frequently Asked Questions
Do all spirits have zero carbs? Yes, distilled spirits like vodka, gin, rum, whiskey, and tequila contain no carbohydrates. However, liqueurs and flavored spirits often contain added sugar.
What about beer and wine? This calculator focuses on cocktails. Beer and wine have their own carb profiles — beer typically has 3–12 g per 100 ml, and wine about 2–4 g per 100 ml.
Can I use this for keto? Yes, it's perfect for keto. Just choose zero-carb mixers and avoid sugary syrups. Net carbs are essentially the same as total carbs for most cocktails.
Why does the calculator show carbs per 100g? This standardizes the measurement, making it easy to compare different drinks and to integrate with nutrition tracking apps that use per-100g values.
Additional Resources
For more detailed nutrition data, refer to the USDA FoodData Central database. You can also explore our other nutrition calculators for specific foods.