Why bigger pizzas can be better value
Pizza area grows with the square of the radius, so a small increase in diameter can mean a much larger pizza. This is the same area formula used in geometry: pi times radius squared.
Pizza Value Calculator
Find pizza area, cost per square inch and approximate slice size.
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Formula
Pizza area = pi x radius squared. Cost per square inch = price / area.
Example
A 16-inch pizza is not just a little bigger than a 12-inch pizza. Area grows with radius squared, so the larger pizza can be much better value.
Common mistake
Do not compare pizza value by diameter alone. Price per area is a clearer value check.