Work out party drinks quantity instantly with clear inputs, formula shown and shareable results.
The planning rule is one to two drinks per drinker per hour, front-loaded in the first two hours. Splitting the total roughly half beer, a third wine and the rest spirits covers most mixed gatherings, remembering that a bottle of wine pours five glasses.
Party drinks
drinks = guests x drinking share x hours x drinks per hour; wine bottles = wine glasses / 5
Five 150 ml glasses from a 750 ml bottle, or six smaller pours. Plan on five to be safe.
Buy a little over on soft drinks and water, which always run short, and check whether the supplier takes returns on unopened alcohol.