Catering Quantity Calculator

Plan your event menu with confidence. Enter your number of adults, children, and event type, then select a food category to get recommended quantities per person and total amounts to prepare. The Catering Quantity Calculator breaks down portions for meat, sides, salads, desserts, and drinks — so you buy exactly what you need and waste nothing.

Count each adult guest aged 18 and over.

Children eat roughly half a standard adult portion.

Toddlers eat roughly a quarter of an adult portion.

Buffet guests typically eat 20% more than plated meals.

Longer events = more food and drinks needed.

More sides mean smaller portions of each per person.

Results

Total Effective Guest Portions

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Main Protein Needed

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Each Side Dish Needed

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Salad / Green Vegetables

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Bread Rolls / Buns

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Dessert Needed

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Total Drinks (Non-alcoholic)

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Coffee / Tea Servings

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Food Quantities at a Glance (lbs)

Results Table

Frequently Asked Questions

How much meat should I serve per person at a catered event?

For a plated dinner, allow about 6–8 oz (roughly 0.4–0.5 lbs) of boneless meat or 0.75–1 lb of bone-in meat per adult. Buffet-style events typically require 20% more because guests tend to serve themselves larger portions. For a BBQ, plan for at least 0.5 lbs of boneless meat per person.

How many side dishes should I make for a large group?

Two to three side dishes is the standard for most sit-down meals. With more variety, you can reduce each individual portion — plan about 4 oz per person per side dish when serving two sides, or 3 oz each when offering three or more. For buffets, bump each portion up by around 20%.

How much dessert do I need for a large gathering?

Plan on one portion (roughly 4–5 oz or a standard slice/piece) per guest. Not everyone will take dessert, but having 100% coverage avoids shortfalls. If you're offering multiple dessert options, reduce each to 3 oz per option and provide 1.5x the total to account for popular choices running out.

How do I adjust servings for children and toddlers?

Children aged 3–17 typically eat around 50% of an adult portion. Toddlers (1–2 years) eat roughly 25% of an adult portion. This calculator converts your child and toddler counts into adult-equivalent portions automatically, so your total food quantities are accurately adjusted.

How do I calculate catering quantities for a buffet vs. a plated dinner?

Buffet servings should be increased by about 20% compared to a plated meal, because self-service leads to larger portions and more second helpings. This calculator applies a buffet multiplier automatically when you select 'Buffet' as your meal style.

How many drinks should I prepare for a catered event?

For non-alcoholic beverages, plan on about 0.5 liters per person per hour of the event. For events lasting 3 hours, that's roughly 1.5 liters per adult. Always round up by 10–15% as a buffer, and ensure you have enough ice and serving vessels. Coffee and tea are usually one cup per person as a post-meal offering.

How far in advance can I prep catering food?

Most cold dishes like salads and condiments can be prepped 1–2 days ahead and refrigerated. Roasted meats and baked sides are best made the day before and gently reheated. Avoid prepping anything with high moisture content (like cut fresh fruit) more than 24 hours in advance to maintain quality.

How do I plan catering quantities for guests with dietary restrictions?

Survey guests in advance for vegetarian, vegan, gluten-free, or allergen needs. As a rule of thumb, prepare vegetarian options to cover at least 20–25% of your total portions even without specific requests, as many guests reduce meat intake. Label dishes clearly and keep allergen-free items separate to avoid cross-contamination.

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