Baking tool
Cake Pan Size Calculator
Compare cake pan sizes and adjust baking recipe quantities.
For similar cake height, scale the recipe by pan surface area. Round pan area = π × radius². Square or rectangle pan area = length × width.
| From | To | Approx scale |
|---|---|---|
| 8-inch round | 9-inch round | 1.27x |
| 9-inch round | 8-inch round | 0.79x |
| 8-inch square | 9-inch round | 0.99x |