To get the answer to this, all we have to do is figure out how many calories are in every inch of the pizza, and then multiply that number by 14.
First of all, let's divide 570 (amount of calories in a 6 inch pizza) by 6.
570 ÷ 6 = 95
Now that we know 95 calories is in every inch of pizza, let's multiply that number by 14 to figure out how many calories is in a 14 inch pizza.
95 x 14 = 1330
There's our answer. There is 1330 calories in a 14 inch pizza.
Hope this helped you out. :)