The party food calculator estimates exact food and drink quantities for any party. Enter your guest count, party type, and duration to get specific quantities for proteins, sides, appetizers, and drinks.
Party Details
How to Calculate Party Food for Any Size
Planning food for a party is easier when you follow established per-person guidelines. The main variables are: how long the party lasts, whether it's a full meal or appetizers, and the ratio of adults to children.
Protein per person
For a full BBQ or dinner: plan 1/3 lb (5 oz) cooked protein per person as a base. If you're offering multiple proteins (burgers + chicken), reduce each by 30%. A 20-person BBQ needs about 7 lbs of burger patties (pre-cook weight) or 6-7 lbs of chicken pieces. Always cook a bit extra — food disappears faster when it smells good.
Drinks rule of thumb
Plan 2 drinks per person for the first hour and 1 per hour after. For a 4-hour party with 20 people: 2 + (3×1) = 5 drinks per person × 20 guests = 100 drinks total. Mix of beer, wine, soft drinks, and water. Always provide non-alcoholic options as the primary option.
Frequently Asked Questions
Is this food calculator free?
Yes, completely free with no signup required.
How much food do I need per person for a party?
General rules: For a full dinner, plan 1/3 to 1/2 pound of protein per person, 4-6 oz of each side dish, and 2-3 appetizer pieces per person per hour. For a 3-hour appetizer party, plan 6-8 pieces per person per hour. These amounts increase 10-15% for parties with mostly adults and decrease for parties with children.
How much should I budget for party food?
A casual home party (burgers/hot dogs) costs $15-25 per person including drinks. A backyard BBQ with multiple proteins and sides runs $25-40/person. A catered buffet style runs $35-75/person. Add 10-15% extra to all estimates to avoid running out — having leftovers beats running short.
How much alcohol do I need for a party?
General rule: plan 2 drinks per person for the first hour, then 1 drink per additional hour. For beer: 1 beer = 1 drink. For wine: 1 bottle = 5 glasses. For spirits: 1 liter = ~22 standard drinks (1.5 oz each). Always have non-alcoholic options available for drivers and non-drinkers.
Should I plan for extra food?
Yes — always add 10-15% to calculated quantities. It's better to have modest leftovers than run short. People eat more than expected when food is good, when the party runs long, or when extra guests arrive. For non-perishables (chips, crackers), buy extra without hesitation.