
Baking is a precise art, and scaling recipes up or down requires some finagling. When it comes to converting pan sizes, it's important to consider both the area and depth of the pan to ensure the batter rises evenly and bakes properly. While there are standard pan substitution options available, such as an 8 square pan and a 9 round pan having the same capacity, not all pan conversions are as straightforward. For instance, when doubling a 9 x 13 recipe to fit a 13 x 18 half-sheet pan, the difference in pan depth must be considered, which affects the volume of batter needed. To determine the correct ratio for increasing or decreasing ingredients, one must compare the areas and volumes of the original and desired pans, using simple math to calculate the multiplier.
| Characteristics | Values |
|---|---|
| Pan size substitutions | The capacity of an 8” square pan and 9” round pan are the same (64”) and the pans can be substituted for one another in any recipe |
| If a recipe calls for a 10-inch tube pan, refer to baking pan conversion charts to find a substitute | |
| To convert a 9" x 13" recipe to a 13" x 18" half-sheet pan, multiply the ingredients by 1.5 | |
| To convert a 9" x 13" recipe to a 12" x 17" pan, fill the 12" x 17" pan with water and divide the number of cups by 16 to get the amount of the original recipe to make | |
| Baking pan conversions | Baking pan conversion charts can be used to find the right pan size for a recipe |
| The baking time may change when using a different pan size | |
| It is recommended to use weight measurements when doubling a recipe, rather than doubling by volume |
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What You'll Learn

Scaling a recipe for a larger pan
The first step is to calculate the capacity or volume of the original pan and the larger pan. This can be done by multiplying the length, width, and height of each pan to get the cubic volume. For example, if the original recipe calls for a 9" x 13" pan, the volume would be 9" x 13" x 2" = 234 cubic inches. If you are using a larger 11" x 17" pan, the new volume would be 11" x 17" x 2" = 374 cubic inches.
Next, you will need to calculate the scaling factor by dividing the volume of the larger pan by the volume of the original pan. In this case, you would divide 374 by 234, which equals approximately 1.6. This means you will need to multiply all the ingredients in your recipe by 1.6 to scale it up for the larger pan.
It is important to note that the baking time may also need to be adjusted when using a larger pan. The baking time will depend on the depth of the batter in the pan. If the batter is shallower in the larger pan, it may bake faster, and if it is deeper, it may require a longer baking time. Therefore, it is essential to keep a close eye on the baked goods and adjust the baking time as needed.
Additionally, when doubling a recipe, it is recommended to use weight measurements instead of volume measurements for more accurate results. This is especially important in baking, where precise measurements are crucial. If a scale is not available, it is important to carefully measure dry ingredients like flour using the appropriate measuring cups and techniques.
By following these steps and calculations, you can successfully scale a recipe for a larger pan. It ensures that you have enough batter or dough to fill the larger pan and that the proportions of ingredients remain consistent with the original recipe.
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Baking pan conversion charts
The key to successful baking pan conversion is understanding the relationship between the pan's dimensions and the volume of batter it can hold. The volume of batter a pan can hold is crucial because it determines how much batter you need to prepare and how high the batter should be filled in the pan.
For example, let's say you have a recipe that calls for a 9" x 13" pan, but you only have an 8" square pan. By calculating the capacity of each pan (9" x 13" = 117", 8" x 8" = 64"), you can determine that the 9" x 13" pan has a larger capacity. To adjust the recipe for the 8" square pan, you would need to reduce the volume of batter by dividing the area of the smaller pan by the area of the larger pan and then multiplying this conversion factor by the amount of each ingredient in the recipe.
It's important to note that not all pans are suitable substitutes for each other. For instance, a Bundt pan is not recommended for sponge cakes or foam cakes as the shape of the pan is not designed for these types of cakes. Additionally, the depth of the pan is a critical factor to consider. As mentioned earlier, the volume of batter a pan can hold is essential, and the depth of the pan directly impacts this volume. A half-sheet pan with 1" sides may not be suitable for a doubled recipe intended for a 9" x 13" pan with 2" sides, as the batter may overflow.
When using baking pan conversion charts, it's always a good idea to keep the following in mind:
- Fill pans only halfway to two-thirds full to allow for rising and prevent overflowing.
- Keep an eye on baking time, as substituting a different pan may require adjusting the baking duration.
- When doubling a recipe, it is best to use weight measurements instead of doubling by volume to ensure accurate results.
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Calculating the volume of the pan
To calculate the volume of an 11x17 pan, you need to first understand that the volume of a rectangle is actually the volume of a rectangular cuboid or a 3-dimensional object. This is because a rectangle is a 2-dimensional geometric figure and does not have volume, only area.
To calculate the volume of a rectangular cuboid, you need to multiply its length, width, and height. The formula for this is V = l x w x h, where V is volume, l is length, w is width, and h is height.
Therefore, to calculate the volume of an 11x17 pan, you would need to know its height or depth. Once you have that measurement, you can plug the values into the formula and calculate the volume.
For example, if the height of the 11x17 pan is 2 inches, the volume would be calculated as follows:
V = 11 x 17 x 2 = 374 cubic inches or centimeters, depending on your unit of measurement.
It's important to note that when baking, the volume of the pan is crucial in determining the amount of batter needed and the subsequent baking time required.
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Baking time adjustments
When adjusting a recipe to fit a different pan size, it is important to consider the baking time and temperature adjustments that may be required. Firstly, it is generally recommended that pans be filled to about the halfway mark to prevent overflowing. If you have a larger pan, you may need to increase the oven temperature by 25°F and decrease the baking time, resulting in a thinner cake but with a similar taste and texture. Conversely, when using a smaller pan, lower the oven temperature by 25°F and increase the baking time. This will prevent the cake from drying out.
It is important to note that these adjustments are not always necessary, especially if the difference in pan size is minimal. A good rule of thumb is that if the new pan size is within 10% of the original size, no adjustments to time or temperature are needed. For example, an 8-inch square pan has 79% of the area of a 9-inch square pan, so no changes are required. However, if the difference is more than 10%, adjustments may be necessary. For instance, if you are doubling a recipe that calls for a 9"x5" pan and using an 8"x8" pan, the formula indicates that a temperature adjustment is needed.
Additionally, the shape of the pan can also impact baking time. For instance, a Bundt cake will take about 30% longer to bake in a 10-cup capacity pan than in a 9"x13" pan due to its thicker and deeper shape. Similarly, a smaller, deeper dish with the same volume of batter as a larger, shallower dish will take longer to bake because it takes more time for the heat to penetrate and for the liquid to evaporate.
It is always a good idea to keep a close eye on your bake and use a cake tester to ensure it is cooked to your desired level, regardless of the pan size or adjustments made.
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Substituting ingredients
Firstly, it is important to note that when doubling a recipe, it is best to use weight measurements rather than volume. If you don't have a scale, be sure to measure your flour carefully. Secondly, the depth of the pan is important. The height of the sides of the pan will affect the volume of the mixture and therefore the cooking time. For example, a half-sheet pan has sides that are only 1" tall, whereas other conversions involve pans with sides that are at least 2" high.
When substituting ingredients, it is important to consider the texture, moisture content, and density of the ingredients. For example, when substituting vegetables, you can swap Brussels sprouts for broccoli, but you may need to increase or decrease the cooking time. Similarly, you can substitute root vegetables for one another, or winter squash for another type of winter squash. Leeks, onions, scallions, shallots, and spring onions are also largely interchangeable.
Dairy products are also easy to swap. Sour cream, yogurt, and creme fraiche can be used interchangeably, and half-and-half can be made from a combination of milk and heavy cream. Eggs, however, are a little trickier and can affect the final texture and cooking times. When baking, small amounts of eggs can be replaced with mashed fruit and vegetable purees, such as mashed bananas, applesauce, or canned pumpkin puree. These purees add moisture and a subtle fruit flavor.
When it comes to herbs and spices, you can experiment with different combinations to find substitutes. For example, 1 tablespoon of fresh herbs can be replaced with 1 teaspoon of dry herbs, and chili powder can be made by combining paprika, cumin, onion powder, garlic powder, and cayenne. Oils with high smoke points, such as neutral oils, are suitable for high-temperature cooking, whereas butter and other solid fats have low smoke points and burn easily.
Baking powder and baking soda can also be substituted or even made at home if you run out. For example, you can use a combination of bread flour and cake flour instead of all-purpose flour.
In summary, while substituting ingredients and changing pan sizes can be challenging, with a little creativity and flexibility, it is possible to make successful substitutions and create delicious dishes.
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Frequently asked questions
It depends on the recipe and the depth of the pan. If the original recipe calls for a 9" x 13" pan, you can use a 13" x 18" pan with 2" sides for a doubled recipe. However, if the sides of the 13" x 18" pan are only 1" tall, you will need to adjust the recipe by multiplying the ingredients by a factor of 1.5.
First, calculate the area of the original pan and the area of the new pan. Divide the area of the larger pan by the area of the smaller pan to get your multiplier. For example, if you are scaling a recipe from a 9" x 9" pan to a 13" x 9" pan, divide the area of the larger pan (117) by the area of the smaller pan (81) to get 1.44.
No, you can round up or down to the nearest whole number to make ingredient adjustments easier. For example, in the previous example, you can round 1.44 up to 1.5.
If the pans vary substantially in depth, you will need to calculate the volume of each pan and compare them to determine the correct multiplier.











































