Cocktail Measurement Converter

A jigger is a hourglass-shaped bartending tool, and the term also refers to its standard measurement: 1.5 US fluid ounces (about 44.4 ml). A shot in the United States is also typically 1.5 fl oz, so the volumes match — but a jigger is a piece of equipment used to measure pours during preparation, while a shot is a serving. Outside the US, shot sizes vary: 25 ml or 35 ml is common in the UK and Ireland, 30 ml in much of continental Europe and Australia, and 60 ml in some larger pours.

Both dash and splash are informal bar measurements that have been roughly standardized for recipe writing. A dash is approximately 1/32 fluid ounce, or about 0.92 ml — small enough to come from a bottle with a dasher top, like Angostura bitters. A splash is larger, around 1/8 fluid ounce or about 3.7 ml, typically a quick free-pour. Because they were originally meant to be eyeballed, modern bottles and recipes vary, but these values give you a reproducible starting point.

The fluid ounce was historically defined relative to a gallon, while the milliliter is one-thousandth of a liter, and the two systems were never reconciled into clean ratios. The US fluid ounce is now defined as exactly 29.5735295625 ml, so 1 fl oz is just under 30 ml. The UK imperial fluid ounce is slightly different at 28.4131 ml. This is why bar and recipe conversions look messy — it is the math, not the tool, that produces the decimals.

It depends on the pour size. A 750 ml bottle holds about 25.4 fl oz, so it produces roughly 16–17 standard 1.5 oz pours, about 25 single-ounce pours, or about 12 double-pour cocktails. Many cocktails use multiple ingredients from different bottles, so a single bottle of base spirit usually yields 12–17 finished drinks depending on the recipe. The bottle yield section of this tool calculates exact servings for any pour size you enter.