Quick answer: order 30 burgers for 20 guests,
with a realistic budget of $90 to $180. Use the scenario planner below
if your crowd is lighter, hungrier, or eating other dishes too.
Planning Burgers for a small group of 5โ20 people is refreshingly simple, and you can usually source what you need same-day without any special arrangements.
Order slightly more than the calculation suggests, small groups tend to graze and revisit favorites
Same-day ordering or pickup is typically fine for groups under 20 people.
Tips for Ordering Burgers
Buy 20% more patties than guests for seconds
Offer both beef and veggie options
Pre-form patties the day before
Set up a toppings station with lettuce, tomato, onion, pickles
Toast buns on the grill for extra flavor
Scenario Planner for 20 Guests
Use these planning scenarios to choose an order size that matches your event style.
Light Appetite
Best when serving many other foods.
23 burgers
$69 - $138
Normal Appetite
Standard planning baseline.
30 burgers
$90 - $180
Hungry Guests
Use for high-energy or long events.
38 burgers
$114 - $228
Serving Other Food
Balanced when this is one item among several.
21 burgers
$63 - $126
Execution Plan for a mid-size party
For 20 guests, start procurement same day before
service and run 1 serving wave to keep
quality consistent.
Baseline order: 30 burgers
Recommended buffer (10%): 33 burgers
Category guidance: Stage serving in waves so early guests do not consume the full main-dish allotment before peak arrival.
Category guidance: If you add a second main, use the "Serving other food" scenario as your default baseline.
Planning Guide: Burgers for Your Event
Burger patty sizing and formation dramatically affect both cost and satisfaction at parties. The standard 4-ounce pre-cooked patty shrinks to approximately 3 ounces after grilling, which fits perfectly on a standard bun. Many hosts make the mistake of using 6-ounce patties thinking bigger is better, but these often shrink unevenly and can overwhelm the bun, creating a messy eating experience. For large groups, forming uniform patties is crucial - use a burger press or a kitchen scale to ensure consistency. Make a shallow depression in the center of each patty with your thumb before grilling; this prevents the dreaded burger dome that causes toppings to slide off. Prepare 25% more patties than your guest count suggests, as the grill-master and early arrivals will often grab seconds before everyone has been served.
The toppings station setup deserves as much attention as the burgers themselves. Create a logical flow: buns first, then patties, followed by cheeses, and finally cold toppings arranged from mild to bold (lettuce, tomatoes, onions, pickles). Keep condiments at the end with squeeze bottles rather than jars for faster service and less mess. An often-overlooked tip is to butter and toast the buns on the grill for the last 60 seconds of cooking - this creates a moisture barrier that prevents soggy buns and adds flavor that store-bought buns desperately need. For crowds over 30, set up two identical topping stations on opposite ends of the table to prevent bottlenecks. Label any non-traditional options like turkey burgers, veggie patties, or slider-sized patties clearly so guests don't grab the wrong size bun.
Timing your burger service for large groups requires military precision. Burgers are best consumed within 10 minutes of coming off the grill, which creates a challenge when you're serving 50+ people. The solution is batch cooking on a strict rotation. If your grill can handle 12 burgers at once and you have 60 guests, plan for 5 batches spread over 90 minutes rather than trying to cook everything at once. Communicate your cooking schedule so early guests know when the next batch is coming. Use a warming drawer or low oven (170ยฐF) only for already-cooked patties that need to wait, never for bringing cold patties up to temperature. For truly large events, consider a two-grill system with one person dedicated to each, allowing continuous production. The secret is to undercook slightly when you know patties will rest in a warmer - they'll continue cooking to perfection.
Frequently Asked Questions About Burger
How many burgers should I make per person?
Plan for 1.5 burgers per adult and 1 per child. Some guests will want seconds, so this accounts for varied appetites while minimizing waste.
What size burger patties should I use?
For parties, 4-6 oz patties are ideal, substantial enough to be satisfying but not so large they take forever to cook. Quarter pounders (4 oz) are the standard.
How much ground beef do I need per person?
Plan for 6-8 oz of ground beef per person (accounting for 1.5 burgers). For 20 people, buy about 8-10 lbs of ground beef.
What burger toppings should I have?
Essential toppings include lettuce, tomato, onion, pickles, ketchup, mustard, and mayo. Offer cheese slices (American, cheddar, Swiss), bacon, and specialty sauces for variety.
How do I keep burgers warm for a party?
Keep cooked burgers in a 200ยฐF oven on a wire rack for up to 30 minutes. Alternatively, use a chafing dish or slow cooker on warm setting. Don't stack them or they'll get soggy.
Serving estimates on this page are based on USDA dietary guidelines and catering industry standards, reviewed for formula accuracy, link integrity, and planning clarity.