12 cup bundt or tube to 9 x 13" rectangle
| Recipe pan | Your pan | |
|---|---|---|
| Pan | 12 cup bundt or tube | 9 x 13" rectangle |
| Area | n/a | 117 sq in |
| Capacity | 12 cups | 16.2 cups |
| Multiply by | 1.35 |
- Bundt pans are sold by capacity, so this tool compares the two pans by volume, not by area.
- The 9x13 cake is shallower than a bundt, so it bakes faster. The recipe time is usually too long. The tool suggests checking at 60% to 90% of it, then testing with a toothpick.
- Keep the oven at the recipe temperature. A flat pan does not need the long, slow bake that a deep bundt needs.
- Grease the pan well and line the bottom with parchment, so the cake lifts out in one piece.
Example: a plain butter cake
This is a sample ingredient list scaled for this swap. Paste your own recipe in the tool above to scale it.
| Recipe says | Use |
|---|---|
| 2 cups all-purpose flour | 2 2/3 cups all-purpose flour |
| 1 1/2 cups sugar | 2 cups sugar |
| 1/2 cup (1 stick) butter | 2/3 cup (1 1/3 sticks) butter |
| 3 large eggs | 4 large eggs |
| 3/4 cup milk | 1 cup milk |
| 2 tsp baking powder | 2 2/3 tsp baking powder |
Bake time and temperature
For a recipe that bakes 35 minutes at 350°F: start checking at 20 minutes and expect it done by 30, at 350°F.
Bundt and tube pans are deep and heat from the middle. Keep the oven temperature the same and check often near the end.
Fill any pan no more than two thirds full. Bake leftover batter as cupcakes.
Questions about this swap
Can I bake bundt cake batter in a 9x13 pan?
Yes. Pour it in and bake it as a sheet cake. A 12 cup recipe fills the pan about 1 1/2 inches deep if you pour all of it in. It bakes faster than in a bundt pan.
How long do I bake it?
The tool suggests checking at 60% to 90% of the bundt time. A recipe that says 60 minutes may be done between 35 and 55 minutes in a 9x13.