Pan in the recipe
Pan you will use
Common pan sizes by area
| Pan | Area | Area |
|---|---|---|
| 8 x 8 in square | 64 sq in | 413 sq cm |
| 9 x 9 in square | 81 sq in | 523 sq cm |
| 9 x 13 in rectangle | 117 sq in | 755 sq cm |
| 10 x 15 in jelly roll | 150 sq in | 968 sq cm |
| 8 in round | 50 sq in | 324 sq cm |
| 9 in round | 64 sq in | 410 sq cm |
| 10 in round | 79 sq in | 507 sq cm |
| 9 x 5 in loaf | 45 sq in | 290 sq cm |
Common pan swaps
| Recipe pan | Your pan | Multiply by |
|---|---|---|
| 8 x 8 in square | 9 in round | x 0.99 |
| 8 x 8 in square | 9 x 9 in square | x 1.27 |
| 8 x 8 in square | 9 x 13 in rectangle | x 1.83 |
| 9 x 13 in rectangle | 9 x 9 in square | x 0.69 |
| 9 in round | 10 in round | x 1.23 |
| 9 x 13 in rectangle | 10 x 15 in jelly roll | x 1.28 |
How the calculation works
The tool compares the floor area of the two pans, because for the same depth of batter, more area needs more batter. A square or rectangle has an area of length times width. A round pan has an area of pi times the radius squared. Keep the batter depth the same, and your cake or brownies should bake in a similar way.
Most pans are measured across the top on the inside. Sloping sides and different depths mean this is a close guide and not an exact one, and baking time will change, so check early.
To change the amounts themselves, paste them into the recipe scaler calculator and use the number from this page as the multiplier.
Common questions
How do I scale a recipe for a different size pan?
Divide the area of the new pan by the area of the old pan, then multiply every ingredient by that number. This works when the batter will be the same depth.
Can I use a 9 inch round pan instead of 8 x 8?
Yes. The two have almost the same area, about 64 square inches, so you can keep the recipe the same and check for doneness a little early.
How much bigger is a 9 x 13 pan than an 8 x 8?
About 1.8 times larger by area.
Does the baking time change in a different pan?
Often. A larger, shallower pan usually bakes faster and a smaller, deeper one slower, so start checking early and use the doneness test from the recipe.