When to use this calculator
Compare two round pizzas by price per unit of area rather than diameter alone. Compares circular area only, assuming similar thickness, toppings and edible crust. Positive means the second is cheaper per area.
Explore the kitchen costs calculators for other questions in this topic. For a related calculation, use the Recipe Cost Per Serving Calculator: Divide total ingredient cost by the number of servings.
PUTTING IT INTO PRACTICE
Pizza Price Comparison: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| First pizza diameter | 10 |
| First pizza price | 10 |
| Second pizza diameter | 14 |
| Second pizza price | 16 |
| Result | 18.367347 % |
- Check the input labels and enter the example values above.
- Apply the relationship: Second cost-per-area saving (%) = (1 − (second price/second area)/(first price/first area)) × 100.
- The result is 18.367347 %, rounded for display.
How to interpret your result
Compares circular area only, assuming similar thickness, toppings and edible crust. Positive means the second is cheaper per area.
Decide whether costs include waste, labour, utilities and tax before comparing results. Food cost percentage uses selling price as its base, whereas a markup uses cost. Unsaleable portions can raise cost per saleable serving.
Frequently asked questions
Does ingredient cost per serving include labour?
Only if labour is included in the cost you enter. The tool cannot infer unentered overhead or preparation costs.
When is the pizza price comparison calculator useful?
Compare two round pizzas by price per unit of area rather than diameter alone. Compares circular area only, assuming similar thickness, toppings and edible crust. Positive means the second is cheaper per area.
How do I use the pizza price comparison calculator?
Enter first pizza diameter, first pizza price, second pizza diameter, second pizza price. The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Second cost-per-area saving (%) = (1 − (second price/second area)/(first price/first area)) × 100.
What should I check before using the result?
Compares circular area only, assuming similar thickness, toppings and edible crust. Positive means the second is cheaper per area.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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