Pizza Calculator
Never run out of food! Figure out exactly how many pies you need.
Pizzas to Order (Large)
2
Total Slices Needed
15
Leftover Slices
1
Method
How this calculator works
Total Slices = (Adults × Slices per Adult) + (Kids × Slices per Kid). Total Pizzas = Total Slices / Slices per Pizza (rounded up).
Slices = (Adults * AdultAppetite) + (Kids * KidAppetite)
Pizzas = Math.ceil(Slices / 8)- Enter the number of adults and kids.
- Select the expected hunger level.
- View the recommended number of pizzas to order.
Examples
Worked examples
Real numbers, end-to-end results.
10 adults, 5 kids, average hunger
5 Large Pizzas (40 slices)
Based on 3 slices/adult and 2/child.
20 adults, heavy hunger
10 Large Pizzas (80 slices)
Based on 4 slices/adult.
Use cases
When to use it
- Party planning.
- Office lunches.
- Family gatherings.
FAQ
Frequently asked questions
How many slices are in a standard pizza?
A standard large 14-inch pizza usually has 8 slices. A medium 12-inch pizza also has 8 slices, but they are smaller. An extra-large 16-inch pizza typically has 10 or 12 slices.
How many slices should I plan per person?
A good rule of thumb is 3 slices per adult and 2 slices per child for an average hunger level. If it's the main meal or people are very hungry, plan for 4 slices per adult.
What if we want multiple toppings?
Always include at least one plain cheese and one pepperoni, as they are crowd-pleasers. For a large group, a ratio of 40% cheese, 40% pepperoni, and 20% specialty is safe.