The more of you there are and the thirstier you get, the faster the booze disappears. This (totally unscientific) calculator estimates how fast your group drains the stash and how many hours until the dreaded "we're out".
A for-laughs estimate of how fast your group drains the booze stash.
Behind the joke there's a real pattern: consumption doesn't scale neatly with headcount, it scales with pace. Ten friends at the start of the night, toasting with full glasses, drain the stash far faster than the same ten two hours later, when thirst drops and the talking takes over. The bar rule of thumb is simple: the first 90 minutes are the thirstiest, then the pace roughly halves on its own.
So the trick to not running dry isn't buying at random but estimating bottles per head and per time slot in advance. If you're actually throwing a party or an event, it pays to move from the game to the real numbers: work out how many bottles you need based on guests and duration, and if you're batching cocktails think in liters per round instead of by eye. Water on the table and something to eat not only stretch the stash, they keep everyone clearer-headed too: drink responsibly.
Not at all: it's a bar game. For the real numbers use the pro calculators below.
Lower the thirst (water between rounds) or raise the stock: the calculator updates the hours instantly.
A silly entertainment game. Drink responsibly and keep water on hand.