Calculating Your Drinks Per Bottle: The Science of the Pour
Understanding how many drinks you can get from a 750ml bottle is more a matter of simple math than guesswork. The calculation is based on the bottle's total volume divided by the volume of each pour. A 750ml bottle, the standard for most spirits, is equivalent to 25.4 fluid ounces. From there, the number of drinks depends entirely on how much liquor you pour for each serving.
Standard Shots
For a standard shot, the general consensus in the U.S. is 1.5 fluid ounces (or 44 ml). To find the total number of shots, you divide the bottle's volume by the shot size:
- Bottle volume in ounces: 25.4 oz
- Standard shot size: 1.5 oz
- Calculation: 25.4 / 1.5 = 16.93 shots
This is often rounded down to 16 shots to account for minor spills or variations in pouring. If you use a smaller 1-ounce pour, a 750ml bottle can yield up to 25 servings. To achieve this level of precision, many bartenders use a jigger, a small measuring tool designed to ensure consistent pours.
Mixed Drinks and Cocktails
Determining how many cocktails you can make is slightly more complex, as cocktail recipes use different amounts of base spirit. A classic mixed drink might use a standard 1.5 oz pour, yielding 16 drinks. However, many cocktails call for a larger 2 to 2.5 oz pour, especially for spirit-forward drinks like a martini or an Old Fashioned.
- For a 1.5 oz cocktail pour: A 750ml bottle makes about 16 drinks.
- For a 2 oz cocktail pour: A 750ml bottle makes about 12 drinks (25.4 / 2 = 12.7).
- For a 2.5 oz cocktail pour: A 750ml bottle makes about 10 drinks (25.4 / 2.5 = 10.16).
For cocktails with multiple liquors, like a Long Island Iced Tea, the amount of base spirit will also vary and may contain more than one standard drink equivalent per glass. It is important to remember that 'one drink' doesn't always equal 'one standard drink' in a cocktail.
Comparison of Servings by Drink Type
When planning a party or managing a bar, knowing how different drink types affect the bottle's yield is crucial. The following table provides a quick comparison based on typical U.S. pour sizes from a 750ml bottle.
| Drink Type | Standard Pour Size | Approximate Drinks Per 750ml Bottle | 
|---|---|---|
| Standard Shot | 1.5 oz | 17 | 
| Small Shot | 1.0 oz | 25 | 
| Double Shot | 3.0 oz | 8 | 
| Mixed Drink | 1.5 oz | 16-17 | 
| Rocks Pour | 2.0 oz | 12 | 
| Spirit-Forward Cocktail | 2.5 oz | 10 | 
Factors Affecting Your Pour Count
- Pouring Consistency: Hand-pouring without a measuring tool, or 'free-pouring', can lead to inconsistencies. Experienced bartenders can free-pour accurately, but for the average person, a jigger is the best way to ensure you maximize your drinks per bottle and control drink strength.
- Ice and Mixers: For drinks served on the rocks or with mixers, the amount of ice and mixer used can create the illusion of a larger drink, even if the liquor volume is standard. A good pour is less about filling the glass and more about getting the right ratio.
- Alcohol by Volume (ABV): For lower-proof liquors, a larger pour might be considered a standard 'drink equivalent' compared to higher-proof spirits. A standard drink contains roughly 14 grams of pure alcohol (0.6 fluid ounces), and the amount of liquid changes depending on the ABV.
The Difference in Wine and Champagne
It's worth noting that the calculation for liquor does not apply to wine or champagne. A standard 750ml bottle of wine typically yields about 5 glasses, based on a standard 5-ounce pour. For champagne, the pour size is smaller (around 4 oz), resulting in roughly 6 glasses from a standard 750ml bottle.
Conclusion
While a 750ml bottle of liquor is a staple for home bars and parties, the exact number of drinks it produces is not a single, fixed number. For standard shots, you can plan on getting about 16 to 17 servings. However, the true answer depends on the type of drink and the pour size. By using proper measurements and understanding the variations in cocktails, you can accurately plan for your event and ensure you have enough libations to go around. Whether you're serving simple shots or complex cocktails, the key is consistency and a little bit of math.