Cake Pan Substitute Rechner — Formel
## How to Substitute Cake Pans
### Formula
**Round Pan Area = pi x (Diameter / 2) squared**
**Rectangular Pan Area = Length x Width**
**Batter Ratio = Substitute Area / Original Area**
When switching pan sizes, the key is matching the total batter volume to the pan area. If the substitute pan is smaller, you will need to reduce the batter (or use multiple pans). If it is larger, the cake will be thinner.
### Baking Time Adjustment
A thinner cake bakes faster. Reduce baking time by about 5 minutes per inch of reduced depth and check early.
### Formula
**Round Pan Area = pi x (Diameter / 2) squared**
**Rectangular Pan Area = Length x Width**
**Batter Ratio = Substitute Area / Original Area**
When switching pan sizes, the key is matching the total batter volume to the pan area. If the substitute pan is smaller, you will need to reduce the batter (or use multiple pans). If it is larger, the cake will be thinner.
### Baking Time Adjustment
A thinner cake bakes faster. Reduce baking time by about 5 minutes per inch of reduced depth and check early.
Lösungsbeispiel
Substituting a 9-inch round pan with an 8-inch round pan.
- Original area = pi x (9/2)^2 = pi x 20.25 = 63.6 sq in
- Substitute area = pi x (8/2)^2 = pi x 16 = 50.3 sq in
- Batter ratio = 50.3 / 63.6 = 0.79
- You need about 79% of the recipe or 2 pans to hold the full batch.