Pan Size Converter
Converting 9x13-inch pan to 10" Bundt pan? Find out exactly how to scale your recipe and adjust bake time.
Units
Recipe scaling
scale ingredients down × 0.68
Area ratio: 79 / 117 sq in
If you scale the recipe
Keep the original temperature and bake time
Area scaling keeps the batter depth similar. Start checking doneness about 5 minutes early.
If you keep the full batch
Split across about 1.48 10" Bundt pans
One target pan makes the full batch about 1.48× deeper. If using one pan, lower the oven by about 25°F (15°C) and allow extra center-bake time.
Popular conversions
9×13 pan to 10-inch Bundt pan: practical conversion
The target has 0.68× the base area of the original. Scale the ingredients by that amount to keep batter depth close to the original; the deeper-batter comparison below applies only when you keep the full batch.
| Original recipe | Target-pan amount | Practical handling |
|---|---|---|
| 200 g flour | 135 g | Weighing keeps the scaled amount precise. |
| 3 large eggs | About 2.03 eggs | Beat the eggs, then weigh about 101 g of beaten egg. |
| 1 cup liquid or sugar | 0.68 cups (about 3/4 cups) | Use a measuring cup for liquids; weigh dry ingredients where possible. |
If you keep the full batch: deeper batter
With the same 4 cups of batter, the layer is about 0.49 in (1.25 cm) deep in the 9×13 pan, versus 0.73 in (1.86 cm) in the 10-inch Bundt pan.
Bake-time starting point
For a scaled batch, keep the original temperature and time, then start checking about 5 minutes early. For a full batch in the target pan, plan on about 35–45 minutes for a cake that takes about 25–30 minutes in the original shallow pan. Pan material, recipe density, and the intended texture can shift the final time.
What Matters for This Conversion
- - Capacity can align while depth profile still differs.
- - Do not overfill; shape needs headroom for rise.
- - Greasing and release strategy are critical in Bundt pans.
FAQ
Is a 10-inch Bundt similar to 9x13?
Often close in capacity, but bake dynamics differ.
How full should a Bundt pan be?
Usually no more than about 3/4 full.
Why does Bundt stick more?
Shape details trap crumb without thorough pan prep.
Does time increase in Bundt?
It can, depending on batter density and pan material.