How to size party food
Pick a format, then scale to the guest list.
Choose the format
Decide whether food is the main event or a side attraction.
Enter the guest count
Use expected attendance and add a small buffer.
Check the weight
Use the total weight to compare quotes from caterers and shops.
What does this tool do?
Food quantity depends on whether the event is appetizers, a buffet or a plated meal. This calculator applies common catering portions per guest and converts them into a total weight so you can shop with confidence.
The Formula
Portions = guests × portions per guest; weight = portions × portion weight ÷ 16Frequently Asked Questions
How much food do I need per guest?
A buffet usually works out at 1.25 to 1.5 lb of food per guest, while heavy appetizers need six or more pieces. The format selector switches between these planning bases.
How do I handle dietary restrictions?
Ask in advance, label every dish and keep a substantial vegetarian option. Separate nuts and other common allergens rather than relying on guests to pick around them.