Party & Buffet Food Quantity Calculator
Say who's coming and what you're serving, and get how much of each dish, drinks and ice.
Enter your RSVPs (yes and maybe), the party length and your dishes. Get a quantity for each dish, drinks, ice in bags and a shopping list, with the working shown. Handles kids, dietary mains and your own portion rules. Works offline on your phone.
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One-time purchase, no subscription. Download link by email. Refund within 14 days if it doesn't help.
This calculator only works out quantities. For how long food can sit out, keeping hot food hot and cold food cold, and storing leftovers, follow official food-safety guidance such as FoodSafety.gov in the US, or your national food safety agency. Dietary tags are your own labels; always check ingredients for allergies.
Party & Buffet Food Quantity Calculator
Sample: a 3-hour buffet with a 10% buffer
about 51 people
43 adults and 8 kids, with maybes counted at the turnout you set
Every portion rule is editable. These are example numbers.
Try it here
This is the demo build with sample numbers. Saving and export are switched off.
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What you get
- Yes and maybe guests with editable turnout (95% and 50% to start), so "2/3rds of the maybes" is one number to change
- A quantity for every dish, rounded up to whole servings or quarter pounds, with the working shown
- Drinks by party length, an alcoholic share you set (0% to start), and ice in bags
- Reserve a main for a dietary group, such as 6 vegetarian guests, and see a dietary check
- Copy the shopping list or print a one-page plan; every portion rule is editable
Who it's for
Hosts of holiday parties, open houses, birthdays, graduation parties and showers who have RSVPs coming in a week or two out and want a clear quantity for each dish instead of guessing.
Questions
How does it handle guests who said maybe?
Each group has a turnout percentage you can change: 95% of confirmed guests and 50% of maybes to start. Expected people = confirmed x its percentage + maybes x its percentage, and the formula is shown on screen.
Where do the portion sizes come from?
They are common rules of thumb, such as 4 appetizer pieces per adult with a meal or 6 oz of main per adult. They are starting points: open Portion rules and change any of them to suit your guests.
Does it tell me how long food can sit out or how to store leftovers?
No. This calculator only works out quantities. For how long food can sit out, keeping hot food hot and cold food cold, and storing leftovers, follow official food-safety guidance such as FoodSafety.gov in the US, or your national food safety agency. Dietary tags are your own labels; always check ingredients for allergies.
Can I add as many dishes as I like?
Yes. There is no limit on dishes. Each one has a category and a unit (pieces, servings, oz/lb or items), and quantities are split evenly across the dishes in a category.
Does it work on my phone and offline?
Yes. It is one HTML file designed for a phone screen first. Everything saves on your device, and Export and Import let you back up or move it to another device.
Does it work on my phone?
Yes. Each tool is a single file that opens in the browser on any iPhone, Android phone, tablet or computer. There's no app to install.
Where do my numbers go?
Nowhere. Everything you type stays on your own device. The tools work offline and never send your data anywhere.
Is there a subscription?
No. You pay once and keep the file. Fixes to the version you bought are free.
Pay once,
$9
You get the file, free fixes to version 1.0.0, and your money back within 14 days if it doesn't help.
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Read the refund policy