Non-Alcoholic Beverages Quantity Calculator for an Event
Written by Thierno Sadou Diallo, formula verified per our methodology • Last checked on 9/9/2026
For an event, count on about 1 to 1.5 L of water per person, and about 1 L of soda or juice per 3 to 4 people (roughly 0.3 L per person). For 30 people, that's about 36 L of water and 10.5 L of soda and juice.
Explanation
Non-alcoholic drinks make up a significant share of any event, including those where alcohol is also served (see our ice quantity calculator for the ice needed to serve these drinks cold): many guests prefer water or a soft drink, and even those drinking alcohol generally alternate with non-alcoholic beverages over the course of an evening. Professional benchmarks converge on about 1 to 1.5 liters of water per person, to be adjusted toward the upper end of the range in hot weather or for a very lively, dance-heavy event that increases guests' thirst. For sodas and fruit juices, the most cited benchmark is about 1 liter per 3 to 4 people, or roughly 0.3 liters per person — a noticeably smaller quantity than water, since these drinks are generally consumed as a complement rather than the main thirst-quenching drink. Both benchmarks stay adjustable in this calculator rather than fixed, since actual consumption varies with the event's duration, the weather, and the preferences of the guests present; a margin of 10 to 15% beyond the calculated total is generally recommended, especially for water and sodas, to avoid running out partway through the event. To scale any other recipe or dish for the same guest count, see our recipe portions calculator.
Example: 30 people, default benchmarks
Inputs
Number of people: 30. Water per person: 1.2 L. Soda and juice per person: 0.35 L.
Calculation
Water = 30 × 1.2 = 36 L. Soda and juice = 30 × 0.35 = 10.5 L. Total = 36 + 10.5 = 46.5 L.
Result
About 36 L of water and 10.5 L of soda and juice should be planned for, a total of 46.5 L of non-alcoholic drinks.
Frequently asked questions
Should more water be planned for an outdoor summer event?
Yes, it's recommended to move toward the upper end of the range (1.5 L per person rather than 1 L) in hot weather or for a very lively, dance-heavy event, two factors that noticeably increase guests' thirst beyond the usual benchmark.
Does this calculation also apply to an event where alcohol is served?
Yes: even at an event with alcohol, most guests keep drinking water and non-alcoholic beverages alongside it, often in a larger quantity than the alcohol itself over the full length of the evening. This calculator covers that non-alcoholic side; for the alcoholic side of the same event, see a dedicated wine or drinks quantity resource.
What safety margin should be planned beyond this calculation?
A margin of 10 to 15% beyond the calculated total is generally recommended, especially for water and sodas, which keep easily if there's a surplus (unlike perishable food). This margin absorbs individual consumption differences, which are harder to predict precisely than average per-person benchmarks.