8x8 to 9x13 Pan Conversion
To bake an 8x8 recipe in a 9x13 pan, make about 1¾ times your recipe.
The answer
×1.83
Make about 1¾ times your recipe.
One 8-inch square holds about 8.9 cups to the brim and one 9 x 13 inch pan about 16.2 cups, so the new pan takes 183% as much batter to fill it just as full.
Scale my ingredients ×1.83Baking it in a 9x13 pan
- Keep the same temperature.
- A little longer than your recipe says. A typical butter cake in this pan bakes about 30–40 minutes.
Using the recipe as it is
It fills this pan only 55% as full as your recipe's pan, so the cake comes out shorter. The batter sits 45% thinner, so it bakes faster: start checking 5–10 minutes early.
Your ingredients at ×1.83
What common amounts in an 8x8 recipe become in a 9x13 pan. Weighing is the most accurate way to scale.
| In the recipe | Use |
|---|---|
| 1 cup (flour, sugar, milk) | 1¾ cups + 1 tbsp |
| 2 cups | 3½ cups + 3 tbsp |
| 250 g of any weighed ingredient | 457 g |
| 1 stick of butter (113 g, ½ cup) | 207 g |
| 3 large eggs (about 150 g out of the shell) | 274 g beaten egg (about 5½ eggs) |
| 1 tsp (baking powder, baking soda, salt, vanilla) | 1⅞ tsp |
| 1 tbsp | 1 tbsp + 2½ tsp |
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Common sizes
Measure inside the top edge. Left blank, the depth is 2 in.
Common sizes
Size
Measure inside the top edge. Left blank, the depth is 2 in.
Times 1.83. Make about 1¾ times your recipe.
Your recipe
×1.83
Make about 1¾ times your recipe.
From one 8-inch square to one 9 x 13 inch pan. Scaled this way, it fills the new pan just as full.
Odd number of eggs? Beat them and weigh: one large egg is about 50 g (1¾ oz).
Baking it in the new pan
- Keep the same temperature.
- A little longer than your recipe says. A typical butter cake in this pan bakes about 30–40 minutes.
Or pour the recipe in as it is
It fills this pan only 55% as full as your recipe's pan, so the cake comes out shorter. The batter sits 45% thinner, so it bakes faster: start checking 5–10 minutes early.
Your recipe also fits these, as it is:
- 9-inch round
- 6-cup bundt
- 9 x 5 inch loaf
- 2 × 6-inch rounds
- 12 standard cupcakes
Questions bakers ask
How do I convert an 8x8 recipe to a 9x13 pan?
To bake an 8x8 recipe in a 9x13 pan, make about 1¾ times your recipe. One 8-inch square holds about 8.9 cups to the brim and one 9 x 13 inch pan about 16.2 cups, so the new pan takes 183% as much batter to fill it just as full.
What temperature and time for a 9x13 pan?
Keep the same temperature. A little longer than your recipe says. A typical butter cake in this pan bakes about 30–40 minutes.
Can I use an 8x8 recipe as it is in a 9x13 pan?
It fills this pan only 55% as full as your recipe's pan, so the cake comes out shorter. The batter sits 45% thinner, so it bakes faster: start checking 5–10 minutes early.
What other pans take an 8x8 recipe without changes?
9-inch round, 6-cup bundt, 9 x 5 inch loaf, 2 × 6-inch rounds, 12 standard cupcakes. Each holds within about 12% of the same batter, so the cake comes out just a little thinner or taller.
More pan conversions
Full pan size conversion chartSelling it?
A different pan changes what the cake costs you
×1.83 the batter is ×1.83 the ingredient cost. Price the new size from what it really costs to make.