Party Drink Calculator

What this does

So you are throwing a party and you do not want to run dry halfway through the night, or buy three times what anyone drinks. This calculator gives you a sensible shopping estimate. Tell it about your guests and how long the party runs, and it works out roughly how much beer, wine, liquor, and soft drinks to have on hand.

How to use it

1. Choose whether you know your guests' specific drink preferences.
2. If you do, enter how many beer, wine, and liquor drinkers you expect. If not, just enter your total guest count.
3. Add the party duration and the number of non-drinkers, then press Calculate.

Either way, you get a quick breakdown to shop from.

The rule of thumb

The classic hosting guideline is about one drink per guest per hour. That single idea sits underneath the whole estimate:

total drinks = guests × hours

So a four hour party with 20 guests points to roughly 80 drinks across the night. From there the tool splits that total across beer, wine, and liquor, and adds soft drinks for the non-drinkers, so you are not left guessing at the shop.

Planning tips

A few things smooth this out. People tend to drink a little faster in the first hour, then settle, so build in a small cushion rather than buying exactly to the estimate. A standard bottle of wine pours about five glasses, which is handy when you are counting bottles. And always lay on plenty of water and good non-alcoholic options, not just for the non-drinkers but for everyone, since it keeps the party comfortable and people pacing themselves. Treat the numbers as a starting point and lean a touch generous, because leftover drinks keep, but running out does not. One thing beyond the numbers: this is a planning guide for adults of legal drinking age, so serve responsibly, keep water and good non-alcoholic options within easy reach, never press drinks on anyone, and make sure everyone has a safe way home.

Questions people ask