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Compare sizes, prices, and crust-adjusted value to find the best deal.
Pizza 1: 10" ($10) → 78.5 sq in. Cost: $0.127/sq in.
Pizza 2: 12" ($14) → 113.1 sq in. Cost: $0.124/sq in.
The 12" pizza is 44.0% larger.
Pizza 2 is better value at $0.124/sq in.
Total area78.5 sq in
Total price$10.00
Price / sq in$0.127
Price / sq cm$0.0197
Rank#4
Diff from best$0.018/sq in
Total area113.1 sq in
Total price$14.00
Price / sq in$0.124
Price / sq cm$0.0192
Rank#3
Diff from best$0.014/sq in
Total area153.9 sq in
Total price$18.00
Price / sq in$0.117
Price / sq cm$0.0181
Rank#2
Diff from best$0.008/sq in
Total area201.1 sq in
Total price$22.00
Price / sq in$0.109
Price / sq cm$0.0170
Rank#1
Diff from best$0.000/sq in
This treats the outer crust ring as non-topped area. It is an approximation — real crust widths vary across styles and shops.
| Pizza | Full area | Topped area | Crust area | Crust % | Price / full | Price / topped |
|---|---|---|---|---|---|---|
| Pizza 1 (10") | 78.5 sq in | 56.7 sq in | 21.8 sq in | 27.8% | $0.127/sq in | $0.176/sq in |
| Pizza 2 (12") | 113.1 sq in | 86.6 sq in | 26.5 sq in | 23.4% | $0.124/sq in | $0.162/sq in |
One 10" pizza has 78.5 sq in of area.
One 12" pizza has 113.1 sq in of area.
You need 1.44 10" pizzas to match one 12" pizza.
That combined area is equivalent to a single round pizza about 12.0" in diameter.
This is an estimate — actual appetite varies.
Estimated pizzas needed: 3
Round pizza: area = π × (diameter ÷ 2)²
Rectangular pizza: area = width × height
Price per unit area = total price ÷ total area.
Crust-adjusted value uses the topped area after removing the crust ring.
Total area = quantity × area of one pizza.
Discounts, delivery fees, and service charges are added to the total price.
Equivalent diameter = 2 × √(combined area ÷ π).
Serving estimates divide total slices by expected slices per person.
Pizza area grows with the square of the diameter, so a small increase in size creates a much larger pizza. A 12-inch pizza is not 20% larger than a 10-inch pizza — it is about 44% larger.
This comparison assumes round pizzas and equal toppings. Crust width, topping distribution, and personal preference also affect real-world value.