PartyMeasure
Party Drinks Calculator
Estimate non-alcoholic drinks for birthdays, family parties and celebrations.
Adults: 10; children: 10; 2 hours; 10% buffer: on
Your estimate
Total litres
11.75 L
Approx. 3.1 US gallons
250ml servings
47
Water (60%)
7.1 L
Soft drinks / juice (40%)
4.7 L
Planning estimate
PartyMeasure provides planning estimates only. Actual needs vary by guest appetite, menu, event length, serving style and local conventions.
How this estimate works
Adults use 1.5 servings in the first hour and 1 each extra hour; children use 1 then 0.75. The optional buffer adds 10% before rounding up to whole servings. Each serving is 250ml, split 60% water and 40% soft drinks or juice. 5+ hours is treated as 5 hours. US gallons = litres ÷ 3.78541.
Practical planning tips
Consider warm weather and active guests, and keep drinking water available. Choose drinks that suit your guests and serving arrangements.
Common questions
How much does one serving represent?
One serving represents 250ml. Your actual glass or bottle sizes may differ.
Should I add a buffer?
The optional 10% buffer gives a little extra and is on by default.
Does the calculator include alcohol?
No. It estimates non-alcoholic water, soft drinks and juice only.
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