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Pizza Calculator

🍕Pizza Size Comparison

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Detailed Guide Coming Soon

We're working on a comprehensive educational guide for the Pizza Calculator in your language. The content below is shown in English.

What is Pizza Calculator?

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A pizza size calculator compares the area and value of different pizza sizes, revealing whether a large pizza is actually better value than two mediums. Area scales with the square of the radius, so a 16" pizza is not just 33% bigger than a 12" — it's 78% more pizza.

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How to Pizza Calculator

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  1. 1Pizza area = π × (diameter/2)² = π × r²
  2. 2Value per square inch = Price / Area
  3. 3Compare cost per cm² or cost per square inch across sizes

Worked Examples

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Example 1
Given:12" pizza £10 vs 16" pizza £14
Rezultat:12": 113 in² at 8.8p/in² · 16": 201 in² at 7.0p/in²

16" is 20% cheaper per square inch

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Did you know?

A 18-inch pizza has 65% more area than a 14-inch pizza. This is the mathematical reason why ordering the biggest size is almost always better value at pizzerias.

References

Mathematically verified
Reviewed October 2026
Our methodology

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