(So for a six-hour wedding with 100 guests, you'll need roughly 600 drinks.) Alex Tornai, party planner for Binny's Beverage Depot, errs on the side of more drinks per person (and we're here for it): “Two drinks in the first hour and one drink per hour for the duration of the evening,” he says.
It turns out, there is a magic formula when it comes to calculating the amount of drinks you'll need for your wedding, sort of: Plan for at least one drink per person per hour. (So for a six-hour wedding with 100 guests, you'll need roughly 600 drinks.)
After you know how many guests you are expecting, simply calculate two drinks for each guest in the first hour and then one drink for each guest for each successive hour after that.
Event rental companies rent out taller tables for use as a bar, or actual portable bars designed for just this purpose, but a regular table works fine too. For the tables, it's nice to get a long tablecloth to hide any cases or coolers.
The typical school of thought is to plan one drink per hour per guest. Say you want to calculate how much alcohol for a wedding of 150 for a two-hour reception. That would equal 300 drinks throughout your event. Of course, this number is just an average.
Formula for Standard Drinks A government standard formula is used to determine how many standard drinks are in alcoholic beverages. The formula is outlined below: Volume of beverage in Litres, multiplied by the percentage of alcohol volume, multiplied by 0.789, equals the number of standard drinks.
When planning an event, the average consumption per person is one drink every 45 minutes. If the event will last 2 hours, plan on 3 drinks per person. Start with your best guess of the drinking habits of your guests. Divide the number of guests between the types of beverages you plan to serve.
150 Wedding Guests Champagne (750 ml) - 25 bottles. Red Wine (750 ml) - 15 bottles. White wine (750 ml) - 15 bottles. Spirits (1 liter) - 16 bottles. Beer - 150 cans or bottles.
A good rule of thumb is to buy 10 bottles of vodka, 6 bottles of whiskey, 6 bottles of gin, 4 bottles of scotch, 2 bottles tequila, 2 bottles of triple sec, 2 bottles of vermouth, 4 cases of beer, and 2 cases of wine for every 100 guests.
However, a general guideline is: Standard Serving: Plan for about half a bottle of wine per person for a 2-3 hour event. For longer events, you might consider closer to 1 bottle per person. Using the half-bottle guideline: 150 guests x 0.5 bottles = 75 bottles of wine.