A batch cocktail scaler converts a single-serving cocktail recipe into the exact quantities needed for any number of guests. Whether you are hosting a dinner party for 10 or a wedding for 100, scaling by hand is error-prone — this tool handles the math instantly and converts fluid ounces into cups and liters so you can measure with whatever equipment you have on hand.
Start with a Classic Recipe
Click a preset to load the classic proportions for one serving, then scale to your target servings below.
Ingredients (per serving, in oz)
How many servings the amounts above make
Enter any number or use a preset
Scaled Recipe
| Ingredient | oz | cups | liters |
|---|
Pre-batching without ice? Add dilution water.
Shaking or stirring a cocktail with ice dilutes it by ~25%. To replicate this in a pre-batch, add — oz (— cups / — L) of chilled water to your batch before serving.
How to Use the Batch Cocktail Scaler
Scaling cocktail recipes for a large group requires more than simple multiplication. Volume units change — what starts as quarter-ounce dashes becomes cups and liters — and you must account for dilution if you are pre-batching without ice. The Batch Cocktail Scaler handles the unit conversions and reminds you about dilution automatically, so you can focus on mixing rather than math.
Step 1: Choose a preset or build your own recipe
Click any of the six preset buttons — Margarita, Old Fashioned, Moscow Mule, Mojito, Daiquiri, or Negroni — to instantly load the classic proportions for one serving. Each preset fills in the ingredient names and amounts in fluid ounces, the standard unit for cocktail recipes. If your recipe is not a classic, click Add Ingredient to build the list from scratch. You can mix presets with custom additions freely.
Step 2: Set the original serving count
The "Original Recipe Serves" field defaults to 1, which is correct for the presets. If you are entering a recipe written for, say, 4 servings already, set this to 4 so the scaler knows the correct per-person ratio before multiplying up.
Step 3: Choose your target serving count
Use the quick-select preset buttons (10, 25, 50, 100) for common party sizes, or type any number in the custom field. Then click Scale Recipe to see the results.
Step 4: Read the scaled results
The results section shows each ingredient scaled up, with amounts in fluid ounces, cups, and liters side by side. The summary cards at the top show total batch volume across all three units so you know whether you need a pitcher, a jug, or a full carboy. All amounts are rounded to two decimal places for practical measuring.
About the dilution tip
When a cocktail is shaken or stirred with ice, the ice melts and adds roughly 25% more volume — this is called dilution, and it is an intentional part of the drink's flavor balance. If you are pre-batching your cocktails and storing them in the fridge or a vessel without ice, you need to add this water manually. The tool calculates 25% of your total batch volume and shows you exactly how many oz, cups, and liters of chilled water to add before serving. Skip this step only if guests will be pouring over ice themselves.
FAQ
Is the Batch Cocktail Scaler free to use?
Yes, the Batch Cocktail Scaler is completely free. There is no signup, no account, and no download required. Everything runs in your browser and your recipe data never leaves your device.
Is my recipe data private?
Yes. All calculations happen locally in your browser. Your ingredient list and batch sizes are never sent to a server or stored anywhere outside your device.
What is the dilution tip for pre-batching cocktails?
When you shake or stir a cocktail with ice, it dilutes by roughly 25% as the ice melts. If you pre-batch without ice, add approximately 25% water by volume to your batch to replicate this dilution. For example, a 100 oz batch should include about 25 oz of chilled water. The tool shows you this tip and the exact dilution volume automatically.
How do I scale a Margarita recipe for 50 people?
Load the Margarita preset, which fills in the classic ratio of tequila, triple sec, and lime juice for one serving. Then select 50 from the preset buttons or type 50 in the custom field. The tool instantly scales all ingredient amounts and converts them to cups and liters so you know exactly how much to buy and measure.
Why are amounts shown in oz, cups, and liters?
Cocktail recipes are traditionally measured in fluid ounces. For large batches, cups and liters are more practical since you are likely measuring with pitchers, jugs, or measuring cups. Showing all three units lets you choose whatever is most convenient for your equipment.
Can I add my own custom ingredients?
Yes. Use the 'Add Ingredient' button to add as many rows as you need, entering any amount in oz and any ingredient name. The preset recipes are just starting points — you can modify any ingredient or amount freely.
What cocktail presets are included?
The tool includes six classic cocktail presets: Margarita, Old Fashioned, Moscow Mule, Mojito, Daiquiri, and Negroni. Each preset loads the classic proportions for one serving, which you then scale to your target number of servings.