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Portion Size Calculator

Calculate how much food to prepare per person for any event.

Last updated: June 13, 2026

Calculator

Number of People

Meal Type

Appetite

Results

Meat / Protein3.0 lbs

6 oz per person

Side Dishes (total)4.0 lbs

8 oz per person

Bread / Rolls12 pieces

Beverages16 servings

~2 drinks per person

How to Use This Calculator

1Enter the number of guests.
2Select the meal type (dinner, buffet, BBQ, or appetizers).
3Select the appetite level.
4View portions for meat, sides, bread, and beverages.

Formula Explanation

Portion sizes are based on standard catering guidelines, adjusted for meal type and guest appetite.

Meat = Guests × Oz per Person ÷ 16 Sides = Guests × Oz per Person ÷ 16

Variables:

GuestsNumber of people being served

Oz per Person6-8 oz meat, 8 oz sides for dinner; varies by meal type

Worked Examples

Dinner party for 8

1. Meat: 8 × 6 oz = 48 oz = 3.0 lbs
2. Sides: 8 × 8 oz = 64 oz = 4.0 lbs

Result: 3.0 lbs meat, 4.0 lbs sides, 12 rolls, 16 beverages

Why Use This Calculator

Never over-buy or under-prepare for events again.
Covers common event types: dinner, buffet, BBQ, appetizers.
Adjustable appetite levels for different guest demographics.
Reduces food waste and saves money.

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Tips & Best Practices

For mixed appetizer events, plan 6-8 pieces per person per hour.
BBQs typically require more meat per person than sit-down dinners.
Always prepare 10-15% extra for unexpected guests.

Common Mistakes to Avoid

❌ Buying the same amount of food regardless of meal type.

✅ BBQs and buffets require 20-30% more food than sit-down dinners because people graze more.

❌ Forgetting that children eat less.

✅ Count children as half portions for more accurate totals.

Frequently Asked Questions

How much meat per person for a BBQ?

Plan for 8 oz (half a pound) of cooked meat per adult at a BBQ. This accounts for heavier eating. For mixed protein BBQs (burgers, hot dogs, chicken), you can reduce slightly.

How many appetizers per person?

For an appetizer-only event, plan 6-8 pieces per person per hour. If appetizers precede a meal, 3-4 pieces per person is sufficient.

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Embed This Calculator

Add the Portion Size Calculator to your website for free. Copy the code below and paste it into your HTML.

Width

Height

<iframe src="https://redicalc.com/embed/cooking/portion-size-calculator" width="100%" height="600" style="border:none;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,0.1);" title="Portion Size Calculator — RediCalc.com" loading="lazy" allowtransparency="true"></iframe>

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Disclaimer: This calculator is provided for informational and educational purposes only. Results are estimates and should not be used as a substitute for professional advice. RediCalc.com makes no guarantees regarding the accuracy, completeness, or suitability of any calculations. Always consult a qualified professional before making financial, health, construction, or other important decisions.

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