Key takeaways
- For a full meal, plan 6 oz of protein and two 4 oz sides per guest, plus a few appetizers and one dessert.
- Convert ounces to pounds with (oz × guests) ÷ 16 — 30 guests at 6 oz is about 11 lb.
- Appetizer parties run higher on bites: 4–6 pieces before a meal, 10–12 for a cocktail party.
- 30 guests, full meal ≈ 11.25 lb protein, 15 lb sides, 150 appetizer pieces, 30 desserts.
How to calculate food for a party
Catering a party is two steps: pick a meal style, then multiply tested per-person amounts by your headcount. The standard host's rule for a full meal is 6 oz of protein per guest as the main course, with two sides and a dessert rounding out the plate.
The meal style is just how the event leans — a full sit-down or buffet, a heavy-appetizer reception that replaces dinner, or light bites alongside drinks. Set it to match what you'll actually serve.
Worked example: 30 guests, full meal, 3 hours
Protein = 6 × 30 ÷ 16 = 11.25 lb. Sides = 8 × 30 ÷ 16 = 15 lb across two dishes. Appetizers run 4 pieces base plus 1 extra for the third hour, so (4 + 1) × 30 = 150 pieces, and dessert is one serving each = 30 servings. Round up and add ~10% so you don't run short.
Per-person food amounts
| Dish type | Per guest |
|---|---|
| Protein (main course) | 6 oz |
| Starch side (potato, rice, pasta) | 4 oz |
| Vegetable side | 4 oz |
| Salad | 1.5 oz |
| Appetizers — before a meal | 4–6 pieces |
| Appetizers — cocktail party | 10–12 pieces |
| Dessert | 1 serving |
Buy a little extra — and plan the rest
Round up and add ~10% so you don't run short; most dishes keep or freeze. For a reception built on bites, double-check counts with the appetizers per person calculator, and don't forget the bar — size the drinks for a party separately so the food and drink budgets balance.
Frequently asked questions
How much food do I need for a party?
For a full meal, plan ~6 oz protein, two 4 oz sides, a few appetizers, and one dessert per guest. 30 guests ≈ 11 lb protein and 15 lb sides.
How much meat per person?
About 6 oz cooked protein per guest as the main, or 4 oz with other hearty dishes. 30 guests at 6 oz ≈ 11 lb.
Appetizers before a meal vs a cocktail party?
4–6 pieces per guest before a meal; 10–12 per guest for a cocktail party, adding ~1 more per hour beyond two.
How many sides should I serve?
Two to three for a full meal — a starch, a vegetable, plus salad — at ~4 oz each per guest.
How much extra should I make?
Add ~10% and round up to whole packages. Plan more for hungry crowds or take-home leftovers.
Buffet or plated?
Buffets need slightly more food but less staffing; plated uses tighter portions. Bump amounts ~10% for self-serve buffets.
Per-person catering amounts follow standard hosting and caterer guidance for portion planning — see USDA food planning. Buffer and rounding figures are common hosting estimates.
Last reviewed June 2026