So as guide, if you have 100 guests, you will need around 50 bottles of wine (mix of red and white.) Plus around 300 pints/bottles of lager, beer and cider.
(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.
For a 4 hour party with 100 guests, you will need approximately 400 drinks: 160 beers, 144 glasses of wine (29 bottles) and enough liqueur for 96 individual cocktails (amounts will depend upon what type of cocktail you serve). If you aren't serving wine, plan on 240 cocktails.
Plan on one drink per guest for each hour of your function. Let's assume you are throwing a 4 hour evening party for 100 guests. In other words, 100 guests x 4 hours = 400 drinks.
Casual gathering or daytime event: People tend to drink less. Expect 1-2 drinks per person per hour. Evening or formal events: The consumption will likely be higher, closer to 2-3 drinks per person per hour.
For a 4 hour party with 50 guests, you will need approximately 200 drinks: 80 beers, 72 glasses of wine (15 bottles) and enough for 48 individual cocktails (amounts will depend upon what type of cocktail you serve). If you aren't serving wine, plan on 120 cocktails.
Plan on one drink per guest for each hour of your function. Let's assume you are throwing a 4 hour evening party for 100 guests. In other words, 100 guests x 4 hours = 400 drinks.
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.
A good rule of thumb for estimating is 2-3 drinks per person for the cocktail hour, then 1 drink per person per hour for the rest of the reception. So for example - for a cocktail hour then 4 hour reception for 65 guests you'll need to be prepared to serve at least 350-400 drinks!