For 100 guests and a five-hour bar, plan about 55 bottles of wine, 165 beers and 7 bottles of spirits. Enter your guest count and hours for your own.
At one drink per guest per hour for five hours plus a 10% buffer, 100 guests need about 550 drinks. With half of them wine, that is about 55 bottles of wine, 165 beers and 7 bottles of spirits.
Over a five-hour bar with a 10% buffer, 150 guests need about 825 drinks: roughly 82 bottles of wine, 248 beers and 10 bottles of spirits if half of drinks are wine, 30% beer and 20% spirits.
About 1,100 drinks over a five-hour bar: roughly 109 bottles of wine, 330 beers and 14 bottles of spirits at the same split, plus about 40 bottles of sparkling wine for a toast.
About five. A standard 750 ml bottle holds 25.4 fluid ounces, and a US standard drink of wine is 5 ounces.
About 16 from a 750 ml bottle, using the US standard 1.5-ounce measure of 80-proof spirits. Cocktails with a double measure halve that.
They assume different drinking rates, party lengths and buffers without saying so. This calculator shows each assumption so you can set it for your own guests.
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