There is no standard size for a "giant" pizza. Pizza sizes vary widely depending on the restaurant or pizzeria. However, a giant pizza is typically considered to be at least 18 inches in diameter.
Here are some examples of pizza sizes that could be considered "giant":
- 18 inches: This is a common size for a large pizza, but it can also be considered a "giant" pizza in some places.
- 20 inches: This size is often called an "extra-large" or "jumbo" pizza.
- 24 inches: This is a very large pizza, often referred to as a "party pizza" or "family pizza".
- 30 inches: This size is considered truly gigantic, and it can feed a large group of people.
It's important to note that the actual size of a "giant" pizza can vary by location and even by the specific pizzeria. If you're looking for a giant pizza, it's always best to check with the restaurant or pizzeria directly to find out their specific sizes and options.