Bundt Pan to 9x13 Conversion
A 10-inch Bundt cake recipe may fit a 9×13 pan without changing ingredient amounts, but diameter alone cannot confirm the swap. Check the actual batter yield, usable pan capacity and recipe type before choosing a multiplier.
- 3 min read
- Updated 2026-10-22
Printable conversion chart
Use your browser’s Print command for this chart and your scaled ingredient list.
| Original batter yield | Planned destination batter | Multiplier |
|---|---|---|
| 6 cups | 6 cups | 1 |
| 8 cups | 6 cups | 0.75 |
| 6 cups | 8 cups | 1.33333 |
| 10 cups | 6 cups | 0.6 |
These are calculated planning examples, not universal pan capacities. “6 cups” means batter to bake, not water capacity at the rim.
Scale your ingredients
Replace the example in the scaler below with your ingredients, one quantity per line. The starting multiplier is 1; change it for your conversion direction or batch size. This scales quantities, not baking time or ingredient densities.
Measure capacity without confusing it with batter fill
Before mixing, use measured water to check an unfamiliar pan’s capacity, then empty and dry it. A brimful capacity is not a safe batter allowance: cakes need room to rise. Use the recipe or pan maker’s recommended fill level to determine the usable amount. A tube and fluted walls remove space, so a 10-inch Bundt is not a plain 10-inch round.
Choose the ratio from the amount you can bake
Divide planned destination batter by original batter yield. If the recipe makes 8 cups but your destination plan allows 6, use 6/8 = 0.75 in the scaler above. If both accept the same batter quantity, leave it at 1. Do this planning before mixing so you are not holding activated batter while deciding what fits.
Which cakes are suitable?
Ordinary butter or oil cakes are more promising candidates than foam cakes. Angel food and chiffon recipes can rely on a particular tube pan, ungreased walls and inverted cooling; do not treat them as automatic sheet-cake swaps. A removable-base tube pan may also leak loose batter. Prefer a tested adaptation for these cases.
Bake and serve for the new shape
A rectangle has a different heat path from a ring with a hot center tube. Keep the recipe temperature unless it gives an adaptation, begin checking early and use its doneness cues rather than a fixed time conversion. In the reverse direction, prepare the flutes carefully and follow the recipe’s unmolding instructions. A sheet-cake topping may need changing to a glaze.
Source for the starting comparison
King Arthur Baking’s Bundt guide describes common cake recipes that fit a 10-cup Bundt with about 6 cups of batter. That supports a possible one-batch swap, not a guarantee for every pan sold as 10 inches.
Frequently asked questions
Is every 10-inch Bundt pan the same size?
No. Flutes, height and the center tube change its capacity.
Can I use a 9x13 recipe in a Bundt?
Sometimes, if the cake type and usable batter capacity suit the pan.
Can I convert angel food cake this way?
Use a tested adaptation; its pan and cooling method are part of the recipe.
Should I use the same baking time?
Do not assume so. The center tube changes heat flow, so check the recipe’s doneness cues.