Cocktail Batch Calculator

How it is calculated

The tool scales one ingredient at a time. You enter the amount of that ingredient in a single serving (per_serving_ml, in millilitres) and the number of servings you want to make. The batch volume is total mL = per-serving mL × servings, and the litre figure is total L = total mL ÷ 1000. The millilitre total is rounded to a whole number and the litre total to two decimals, so a result such as 337.5 mL is shown as 338 mL. The number of servings must be at least 1 (it may be a fraction above 1, such as 2.5), and the per-serving amount cannot be negative; otherwise no result appears. Run the tool once for each ingredient in the recipe, using the same number of servings every time, so the proportions stay identical. The tool adds nothing for dilution, garnish or spillage.

Common mistakes

• Forgetting that one run covers one ingredient. The total shown is the gin (or the juice) alone, not the whole drink, so you must run each ingredient separately.
• Mixing units in the recipe. The field expects millilitres; a 2 oz pour is about 60 mL, and typing 2 would give a batch 30 times too small.
• Using different servings numbers for different ingredients. Even a small difference changes the balance, for example sweet to sour, in the finished batch.
• Not allowing for dilution. A drink that is normally shaken or stirred with ice gets water from the ice, so a batch kept in a bottle often needs a measured amount of water added; this tool only multiplies and does not add it.
• Rounding each ingredient by eye. The millilitre total is rounded to a whole number, so measure the exact total with a jigger or measuring jug.