Free calculator · editable assumptions
Party Food Calculator
Get a transparent starting estimate, then adjust it for your crowd and serving style.
Method
Formula: adults × adult allowance + children × adult allowance × child percentage. The default values are planning assumptions, not universal catering rules; change them to suit the menu and guests.
Next questions
How to read this estimate
The calculator separates your inputs from editable planning assumptions. Treat the result as a starting quantity, then adjust it for the real guest mix, product size, venue or serving style. See how our calculators work.