Cake Pan Converter
Convert cake recipes between different pan shapes and sizes.
Round, square, and rectangular pans supported.
Pan Conversion Result
Cake pan conversion is based on the volume (area × depth) of each pan.
Pan area formulas:
- Round: π × r² (where r = diameter / 2)
- Square: side × side
- Rectangular: length × width
Common pan areas:
| Pan Shape & Size | Area (sq in) | Area (sq cm) |
|---|---|---|
| 8" round | 50.3 | 324 |
| 9" round | 63.6 | 410 |
| 10" round | 78.5 | 507 |
| 8" square | 64.0 | 413 |
| 9" square | 81.0 | 523 |
| 9×13" rectangle | 117.0 | 755 |
| 11×15" (jelly roll) | 165.0 | 1065 |
Key equivalents:
- An 8" square ≈ 9" round (almost identical area)
- A 9×13" rectangle ≈ two 9" rounds
- A 9" square ≈ one and a quarter 8" rounds
Adjusting bake time: When using a larger pan, reduce bake time by about 25%. When using a smaller pan (thicker batter), increase bake time by about 25%.