Calculatium

Round Cake Pan Converter

Resize a recipe for a different round cake pan using its inside diameter and filling depth. Find the ingredient multiplier from pan volumes.

Enter your values

The starting values are editable examples. Results update when you change your inputs.

Example: 20
Example: 24
Example: 5
Example: 5

Your result

Updates as you change your values.

Enter values to calculate.

How it is calculated

Ingredient multiplier = (new diameter / original diameter)² × new filling depth / original filling depth.

Worked example

Changing from a 20 cm pan to a 24 cm pan at the same 5 cm filling depth gives a multiplier of 1.44. An original 200 g ingredient becomes 288 g.

Before you calculate

Measure internal diameters and the intended batter depth. A taller pan does not mean it should be filled to its rim. This model treats both filled portions as cylinders and assumes comparable batter density.

Interpreting the result

Multiply ingredient quantities by the factor, but assess leavening and practical batch sizes separately. Baking time and temperature do not scale linearly with volume. Check doneness rather than multiplying the original time.

Use the units shown beside each field. Monetary fields labelled EUR stay in euros; changing language does not exchange currencies. Results are estimates under the stated assumptions.