We have 45 guests old enough to drink. We are providing a keg (approximately 165 12oz servings). I saw somewhere to estimate 2-3 drinks per person for the first hour and 1 drink per person per hour after that. Including cocktail hour, we are looking at 5 hours. I'm also thinking I should lower my estimate since we have already budgeted for the keg. What do you think is a good "drinks per person" number to go with (adjusted for the beer), and what number should I multiply that by to figure out what our bar tab will be? I am only looking for ball park numbers just to see if we can afford an open bar at all.
About half of our guests are light drinkers, a quarter are average drinkers, and a quarter are heavy drinkers.
Any help would be appreciated!