Kitchen Calculators

Baking Pan Conversion Calculator

Easily convert baking pan sizes so you can adjust your recipes to fit the pans you have on hand.

Calculator

1 Original Pan Size

2 Target Pan Size

Comprehensive Baking Pan Size Chart

Here are common baking pan sizes with their approximate areas and volumes to help you swap pans seamlessly without measuring.

Pan Shape & Size Approx. Area (sq in) Approx. Volume (Cups)
Round Cake Pans
6-inch Round29 sq in4 cups
8-inch Round50 sq in4 - 6 cups
9-inch Round63.5 sq in6 - 8 cups
10-inch Round78.5 sq in10 - 11 cups
Square & Rectangular Pans
8x8-inch Square64 sq in8 cups
9x9-inch Square81 sq in10 cups
9x13-inch Rectangular117 sq in14 - 16 cups
10x15-inch Jelly Roll150 sq in10 - 12 cups
Loaf & Specialty Pans
8x4-inch Loaf32 sq in4 cups
9x5-inch Loaf45 sq in8 cups
10-inch BundtN/A10 - 12 cups
12-cup Muffin PanN/A6 cups (1/2 cup each)
9-inch Springform63.5 sq in10 cups

Why You Need a Baking Pan Conversion Calculator

Ever found the perfect cake recipe, only to realize you don't have the exact pan size the recipe calls for? It happens to the best of us! That's exactly why we created this baking pan conversion calculator. Instead of guessing how much batter you need or ending up with a thin, overbaked cake, you can easily figure out the exact conversion ratio to scale your recipe up or down.

Whether you want to switch from a classic 9-inch round pan to an 8x8-inch square, or you're trying to adapt a large sheet cake recipe for a small loaf pan, this tool takes the math off your plate.

How This Calculator Works

It all comes down to math and geometry, but don't worry—we do the heavy lifting! Baking pans hold different amounts of batter based on their area. To get the perfect bake, you must adjust your ingredient amounts so the batter reaches the same height in your new pan.

Here is how to use the tool:

  1. Pick your original pan: Select the shape (round, square, rectangular, or oval) and type in the dimensions from your recipe.
  2. Pick your target pan: Select the shape and size of the pan you actually want to use.
  3. Get your multiplier: Click calculate to see your custom conversion ratio!

Once you have your multiplier, simply multiply every ingredient in your recipe by that exact number. Need help scaling those ingredients? Head over to our Recipe Resizer tool to do it automatically.

Tips for Swapping Baking Pans

Changing your pan size affects more than just the amount of batter. It also changes how your baked goods cook! Here are a few simple tips to keep in mind:

  • Watch the baking time: If your new batter is deeper than it was in the original recipe, it might take longer to bake. If the batter is spread out and shallower, it will bake much faster. Always check your bake 5 to 10 minutes sooner than the recipe says!
  • Don't overfill: Most cake and brownie recipes rise as they bake. Try not to fill your pan more than half or two-thirds full to prevent spills. If you have extra batter, bake a few cupcakes on the side. If you need to figure out the exact volume of a funny-shaped dish, try our Baking Dish Volume Calculator.
  • Pay attention to corners: Square and rectangular pans have corners that heat up faster than the smooth edges of a round pan. Keep an eye on those corners so they don't burn.

Take the Guesswork Out of Baking

Baking is a science, which means precise measurements matter. If you are converting a recipe to fit a new pan, you might end up with tricky measurements like "0.75 cups of flour." To make life way easier, we highly suggest using a digital kitchen scale. You can use our Ingredient Converter to quickly switch your cups and spoons into precise grams.

Also, remember that scaling a recipe changes the amount of baking powder or baking soda you need. Some bakers like to adjust these carefully so the cake doesn't rise too fast and collapse. You can use our Leavening Agents Converter to get the math just right.

Happy baking! Say goodbye to flat cakes and burnt edges, and start adapting any recipe to fit the pans already sitting in your kitchen cabinets.

Need precise volume measurements? Check out top-rated narrow measuring spoons on Amazon