Catering Portion Calculator
Estimate food quantities, portions per guest, and total amounts needed for catering events.
Extra for overage (10-20% typical)
What This Calculator Does
This calculator estimates food quantities needed for catering events based on guest count, food categories, and industry-standard portion sizes. It includes a buffer factor to ensure adequate food for all guests.
The Formula
Each food category has a standard portion size per guest. The buffer adds extra to account for varied appetites, second servings, and unexpected guests. Results are provided in both ounces and pounds.
Step-by-Step Example
Enter guest count
How many guests will attend? Example: 75 guests.
Set buffer
Add 10-15% for sit-down events, 15-20% for buffets. Example: 15% buffer.
Review portion breakdown
The calculator shows per-person and total amounts for appetizers, mains, sides, salad, bread, dessert, and beverages.
Plan purchasing
Use the pound totals to create your shopping and prep lists.
Real-World Use Cases
Event Catering
Plan food quantities for weddings, corporate events, and large gatherings.
Restaurant Buyouts
Estimate food prep for private dining events and restaurant buyouts.
Food Truck Events
Plan inventory for food truck appearances at festivals and events.
Common Mistakes to Avoid
Not adjusting portions for event type. Cocktail receptions need more appetizers, sit-down dinners need more mains.
Using the same portions for lunch and dinner events. Dinner portions are typically 15-20% larger.
Forgetting to account for dietary restrictions. Plan 5-10% of main courses as vegetarian/vegan alternatives.
Frequently Asked Questions
Accuracy and Disclaimer
Portion guidelines are industry averages. Actual needs vary by event type, guest demographics, time of day, season, and menu style. Experienced caterers adjust based on specific circumstances.
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