Party Alcohol Calculator

It estimates a purchase quantity from guest count, the share expected to drink, event length, and the selected planning rate. It then splits that quantity across beer, wine, and liquor. The result is an inventory estimate, not a recommended consumption amount. Provide water, nonalcoholic options, food, and safe transportation.

The calculator offers 0.5, 1, and 1.5 drinks per drinking guest per hour as inventory scenarios. They are not health limits or targets, and actual consumption varies. Avoid adding extra solely to encourage heavier drinking; unopened-product return policies and smaller staged quantities can reduce waste.

Using US standard drink sizes, a 750 mL wine bottle contains about five 5 oz servings and a 750 mL spirits bottle about sixteen 1.5 oz servings. The calculator rounds to whole containers, which can leave unused alcohol. These serving counts describe container math, not a consumption recommendation.

The calculator defaults to 1 liter of mixer per 750 mL spirits bottle as an inventory assumption. Set the rate from the actual drink recipes and include nonalcoholic mixer separately where needed.

The 50% beer, 25% wine, and 25% liquor split is only a default inventory mix. There is no universal mix for an event. Adjust it to the planned menu and guests; the three shares must total 100% for the calculation.

Because every container count is rounded up, you will usually have a few extra bottles or cans, which is the safer way to host. Many liquor stores accept returns on unopened, undamaged bottles, so it is better to round up than to run out mid-event. Keep beer and wine chilled and store unopened spirits for the next gathering.