If you wonder how to adjust your favorite recipe to another shape or size of the pan, here is a handy guide plus a free printable to adapting your recipe. Just have some math nearby while you do so!

Let's say that you have a round pan 8 inches in diameter and 2 inches high, but you want to make a round cake in a mold of 6 inches in diameter and 2.5 inches high.

The cake pan calculator calculates the baking pan sizes if the height of the pans remains constant.

But is there a solution to adjust the sizes of baking pans for any recipe? With just some math, it is not as hard as you might think.

You will be surprised, but the basic math from your elementary school is an essential tool in the kitchen.

If you know how to divide and multiply, you will master all the baking conversions. And this guide comes right up with one of them.

*Download the free baking pan conversion chart printable below.*

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## How to convert pans of different heights

The answer to these questions is simple. First, you should know the pan's volume in the basic recipe (called V1) and the volume of the pan you have on your hands (called V2).

Then divide V2 by V1 to know the conversion coefficient. This number means how many times you should multiply the recipe ingredients to fill your pan.

Note: This principle applies to round and rectangular pans. The numbers below are rounded up to the nearest inch.

Also, try this cake pan converter to calculate the same height pan sizes.

## Calculate the volume of a round pan

To calculate the volume of a round pan, you need to know its radius. Radius is the distance from the center of the pan to the outside.

First, measure the diameter of your mold from the inside wall to the inside wall (not from the outer edges).

Then divide the diameter of the pan by 2. Here is the radius.

So, for a classic 8-inch or 20 cm round pan, the radius equals 4 inches or 10 cm.

How to calculate the volume for this pan? The formula is as follows:

**V = π x R x R x H, **where

V - volume, π = 3.14, R - radius of the pan, and H - the height of the pan.

Let's say the basic recipe calls for a pan 8 inches in diameter (therefore, 4 inches in radius) and 2 inches in height.

So, the calculation looks like this:

V1 = 3.14 x R x R x H = 3.14 x 4 x 4 x 2 = 100 in^{3}.

The same formula calculates a pan's volume in cubic centimeters (cm³).

### Example #1

Let's say you want to make a recipe for a smaller pan, 6 inches in diameter and 2.5 inches in height.

The volume for such the pan will be:

V2 = 3.14 x R x R x H = 3.14 x 3 x 3 x 2.5 = 70 in^{3}

So, to calculate the conversion coefficient:

V2 **÷** V1 = 70 **÷** 100 = 0.7.

How to recalculate the amount of ingredients necessary to make a 6-inch cake 2.5 inches high instead of an 8-inch cake 2 inches high? Just multiply all the quantities of the basic recipe by 0.7.

### Example #2

Now you want to adapt the basic recipe for a larger pan you have on your hands.

Let's say you have a pan 9 inches in diameter (4.5 inches in radius) and 3 inches in height.

The volume will be:

V2 = 3.14 x R x R x H = 3.14 x 4.5 x 4.5 x 3 = 190 in³

So, V2 **÷** V1 = 190 **÷** 100 = 1.9.

So, you should multiply all the recipe quantities by the coefficient of 1.9 to make a cake in a mold 9 inches in diameter and 3 inches in height.

Using similar math, you can adjust a recipe in metric measurements such as centimeters.

## Calculate the volume of a rectangular mold

For a rectangular mold, the volume formula is as follows:

**V = L x W x H,** where

V - volume, L - the length of the mold, W - the width of the mold, and H - its height.

Let's say that the basic recipe calls a rectangular mold 13-inch long, 9-inch wide, and 2-inch high.

We will therefore have:

V1 = L x W x H = 13 x 9 x 2 = 234 in³.

The same formula calculates a pan's volume in cubic centimeters (cm³).

### Example #1

Let's say you want to make a recipe for a smaller pan, 9 inches long, 7-inch wide, and 2.5-inch high.

The volume for such the pan will be:

V2 = L x W x H = 9 x 7 x 2.5 = 157 in^{3}

So, to calculate the recipe conversion factor:

V2 **÷** V1 = 157 **÷** 234 = 0.7.

How to recalculate the amount of ingredients necessary to make a pan 9 x 7 x 2.5 inches instead of a 13 x 9 x 2-inch pan? Just multiply all the quantities of the basic recipe by 0.7.

## How to swap one shape for another

To change a cake recipe from one shape to another, apply the same principle.

Let's say that a basic recipe calls for 6 tartlets 4 inches in diameter and 1 inch high.

The formula to calculate the volume of 6 tartlets is as follows:

**V = Number of tartlets x π x R x R x H**, where

V - volume, π = 3.14, R - radius of the mold, and H - the height of the mold.

So the volume of 6 tartlets will be

V1 = 6 x 3.14 x R x R x H = 6 x 3.14 x 2 x 2 x 1 = 75 in³.

Use the formula to calculate a mold's volume in cubic centimeters (cm³).

### Example #1

Now let's say you want to apply the basic recipe for 6 tartlets to a tart pan 9 inches in diameter and 1-inch high.

So the volume of such a tart pan is

V2 = 3.14 x R X R x H = 3.14 x 4.5 x 4.5 x 1 = 63 in³

Further calculation is

V2 **÷** V1 = 63 **÷** 75 = 0.84.

Here is a conversion coefficient. Therefore, multiply the quantities of the basic tartlet recipe by 0.84 to obtain the amounts for a tart 9-inch in diameter.

### Example #2:

What if you want to make the tartlet recipe mentioned above in a rectangle 14 x 4.5 x 1-inch pan?

So the volume of a rectangle tart pan will be:

V2 = L x W x H = 14 x 4.5 x 1 = 63 in³

So, the conversion coefficient is

V2 **÷** V1 = 63 **÷** 75 = 0.84

Therefore, you have to multiply the quantity of the tartlet recipe ingredients by 0.84 to make a tart in a rectangular pan.

## How to adjust a recipe for silicone molds

Don't panic if you have a fancy silicone mold, for example, heart-shaped or another with a strange shape.

It is still possible to apply mathematic calculations. Most of the top silicone mold manufacturers, such as Silikomart or Pavoni, provide the cake dimensions and the volume of their molds.

So if you have a basic recipe you want to make, first, calculate the volume of the recipe's mold (V1).

Then read the manufacturer's manual and find the mold size or volume you want to use (V2).

Finally, divide V2 by V1 and get the conversion coefficient.

### Example #1

Let's imagine that you want to make a Royal chocolate cake in a silicone baking mold Eros by Pavoni.

The volume of the 8-inch cake ring 2-inch high called in the recipe is

V1 = 3.14 x 4 x 4 x 2 = 100 in³.

The dimensions of the silicone mold Eros are 7.05 x 7.01 x 1.89 inches. So, let's consider that its radius is approximately equal to 3.5 inches. The volume is

V2 = 3.14 x 3.5 x 3.5 x 1.89 = 72 in³.

Now, you should apply the formula V2 **÷** V1 to obtain the conversion coefficient:

V2 ÷ V1 = 72 ÷ 100 = 0.72.

All this means that if you want to make that chocolate mousse cake in a beautiful Pavoni mold, you must multiply the amount of the cake recipe ingredients by 0.72.

Then, make a red mirror glaze or use the red velvet spray on your mousse cake to create an elegant Valentine's dessert.

## Expert tips

While converting your favorite recipe to make in a larger pan, make sure to fill the mold up ⅔ full; otherwise, your batter might overflow when cooking.

What should you do with the extra batter? Make cupcakes or a mini cake and give them away. Your neighbors will be happy!

To avoid an underbaked or overbaked cake, remember that changing pans in your recipe will affect the baking time.

It can be longer or shorter depending on what kind of mold you use; check for doneness using either a toothpick or cake tester.

## Baking pan conversion chart

This is a helpful list of baking pan sizes. You can use these substitutes in place of one another, depending on your availability.

Also, check out my favorite baking tools, including cake and tart pans.

### Round pans

Pan | Volume | Substitution |
---|---|---|

6 x 2 inch round pan | 4 cups | 4 cupcakes |

8 x 2 inch round pan | 6 cups | 8 x 2 inch round pan 9 x 1.5 inch round pan 7.5 x 3-inch bundt pan 8.5 x 4.5 x 2.5 inch loaf pan 9-inch pie dish |

9 x 2 inch round pan | 8 cups | 9 x 5 x 3 inch loaf pan 8 x 8 x 2-inch square pan 9 x 9 x 1.5-inch square pan 10-inch pie dish 12-18 cupcakes |

10 x 2 inch round pan | 10 cups | 7 x 11 x 2 inch rectangular pan 10.5 x 15.5 x 1 inch rectangular pan 9 x 9 x 2-inch loaf pan 15 x 10 x 1-inch jelly roll pan Two 8-inch round pans |

### Square pans

Pan | Volume | Substitution |
---|---|---|

8 x 2-inch square pan | 8 cups | 9 x 2 inch round pan 9 x 5 x 3 loaf pan |

9 x 2-inch square pan | 10 cups | 10 x 2 inch round pan 11 x 7 x 2 inch rectangular pan 9 x 2.5 inch springform pan 10 x 3-inch bundt pan 10 x 15-inch jelly roll pan |

10 x 2-inch square pan | 12 cups | 12 x 17-inch jelly roll pan 10 x 3-inch bundt pan 10 x 2.5 inch springform pan 9-inch tube pan |

### Rectangle pans

Pan | Volume | Substitution |
---|---|---|

11 x 7-inch rectangle pan | 10 cups | 10 x 2 inch round pan 9 x 2-inch square pan 9 x 2.5 inch springform pan 10 x 3 inch Bundt pan 10 x 15-inch jelly roll pan |

9×13 inch rectangle pan | 14-16 cups | Two 9×2-inch round pans |

### Jelly roll pans

Pan | Volume | Substitution |
---|---|---|

10 x 15-inch jelly roll pan | 10 cups | 10 x 2 inch round pan 9-inch square pan 11 x 7 rectangle pan 9 x 2.5 inch springform pan 10-inch bundt pan |

12×17 inch jelly roll pan | 12 cups | 10 x 2-inch square pan 10-inch bundt pan 10 x 2.5 inch springform pan 9-inch tube pan |

### Bundt pan

Pan | Volume | Substitution |
---|---|---|

10-inch bundt pan | 10-12 cups | 10 x 2-inch round pan (10 cups) 9 x 2-inch square pan (10 cups) 10 x 2 inch square pan (12 cups) 11 x 7 inch pan (10 cups) 10 x 15-inch jelly roll pan (10 cups) 12 x 17-inch jelly roll pan (12 cups) 9 x 2.5 inch springform pan (10 cups) 10 x 2.5 inch springform pan (12 cups) 9-inch tube pan (12 cups) |

### Tube pan

Pan | Volume | Substitution |
---|---|---|

9 x 3-inch tube pan | 12 cups | 10 x 2-inch square pan 12 x 17-inch jelly roll pan 10 x 2.5 inch springform pan. |

### Springform pans

Pan | Volume | Substitution |
---|---|---|

9 x 2.5 inch springform pan | 10 cups | 10 x 2 inch round pan 9 x 2-inch square pan 11 x 7-inch pan 10 x 15-inch jelly roll pan |

10 x 2.5 inch springform pan | 12 cups | 10 x 2-inch square pan 12 x 17-inch jelly roll pan 9 x 3-inch tube pan. |

### Loaf pans

Pan | Volume | Substitution |
---|---|---|

8 x 4-inch loaf pan | 4 cups | 6 x 2 inch round pan |

9 x 5-inch loaf pan | 8 cups | 9 x 2 inch round pan 8 x 2-inch square pan |

And here is a free download in PDF - baking pan conversion chart. Print it out and enhance your collection of baking conversions.

Download Baking Pan Conversion Chart >>

## More helpful baking posts

Here is a list of posts to help you enjoy baking, no matter your skill level. Also, discover Baking 101 with all the baking tips and tricks.

- Baking Books For Beginners
- Baking Essentials
- Cake Pan Converter
- Tips On Baking With Silicone Molds
- How To Clean Silicone Molds

## Conclusion

Cake pans are an essential part of any baker's kitchen. This article will help you adapt recipes for different sizes of cakes.

So now there is no limit on what kind or how much batter can be used in your favorite baking recipe.

Happy baking!

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