Party food calculator

Enter how many guests are coming, whether it is a sit-down or buffet dinner or an appetizers-only party, and how hungry your crowd is. You get a starting shopping list based on common caterer rules of thumb, with a spare allowance on top.

Units
Type of event
Appetite of the crowd
%
Main dish, cooked weight8.2 lb
Appetizer pieces88
Side dishes, total
12.1 lb
Bread rolls
44
Dessert servings
22

Runs in your browser: nothing you enter is sent anywhere.

How to use it

  1. Enter the number of guests.
  2. Pick Dinner or buffet or Appetizers only. For a dinner, set how many appetizer pieces each guest gets first (0 for none).
  3. Choose how hungry the crowd is and how much spare to allow.

How it works

Per guest at normal appetite the calculator assumes 170 g (6 oz) of cooked main dish, 250 g (9 oz) of sides, 2 bread rolls and 1 dessert serving; for an appetizers-only party, 12 pieces. Light appetite multiplies these by 0.75 and hearty by 1.35. Everything is then multiplied by the guest count and by 1 plus your spare allowance, and counts are rounded up.

Worked example

20 guests at a dinner, normal appetite, 10% spare: the multiplier is 20 × 1 × 1.1 = 22 portions. Main dish: 170 g × 22 = 3.74 kg (8.2 lb). Sides: 5.5 kg. Appetizers: 4 × 22 = 88 pieces. Rolls: 44. Desserts: 22.

Tips

  • These are rules of thumb. A long event, a late hour or a very hungry group all push the numbers up.
  • Offering several mains lowers the amount of each: split the total between dishes.
  • Keep the spare allowance for dishes that are cheap to over-order, such as sides.

Frequently asked questions

How much food do I need per person?

A common caterer rule of thumb is about 6 oz (170 g) of cooked main dish and 9 oz (250 g) of sides per guest at a dinner, 12 appetizer pieces each when appetizers replace the meal. This calculator uses those figures; they are starting points, not measured data.

Is this the same as a catering quantity calculator?

Yes. It works out the same per-guest quantities a caterer would use. Choose the event type, set the appetite and keep a spare allowance, then use the totals to order or cook.

Is the main dish weight raw or cooked?

Cooked, ready-to-serve weight. Meat loses a quarter or more of its weight when cooked, so buy more raw meat than the number shown. Check the cooking loss of your recipe.

How much extra should I allow?

The default is 10%. Add more for events where guests can take food home or where the number of guests is uncertain, and less for a plated meal with a fixed head count.

More in Home

All tools in this category: Home ·Updated November 3, 2026

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