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Ice Calculator: How Much Ice Does a Party Really Need?

Ice is the easiest party item to forget and the hardest to improvise. A per-guest guide with a time allowance keeps the drinks cold all evening.

What is the Ice Needed Calculator?

Ice chills drinks and keeps food cool, and this calculator estimates kilograms from guest count and event length. The guide allows about 0.5 kg per guest for drinks plus a little more for longer events. Buy a little extra in hot weather, and keep ice in a cooler until needed.

How to use it

  1. Enter the number of guests.
  2. Enter the event length in hours.
  3. Click Calculate Ice for kilograms and bags.

Worked example

20 guests for 4 hours need about 12 kg of ice, or about 6 bags of 2 kg.

How much ice do 20 guests need for 4 hours?

About 12 kg, or about 6 bags of 2 kg, as a planning guide.

Frequently asked questions

Does hot weather change the amount?

Yes. Heat melts ice faster, so buy extra and keep coolers shaded and closed as much as possible.

Can I make ice at home instead?

Yes, but start days ahead. Home freezers make small batches, so a party usually still needs bought bags.

Try the Ice Needed Calculator free · All guides