CelsiustoFahrenheit.pro

Cake Pan Size Converter

Scale the recipe by× 0.55
Recipe pan area
117 sq in
Your pan area
64 sq in
As a fraction
0.55 of the recipe
Baking time
Start checking 5–10 minutes early

Assumes both pans are filled to the same depth. Fill cake pans about half to two-thirds full.

Baking in a different pan than the recipe calls for? Compare pan areas to see how much to scale the recipe and how baking time changes.

How to use the Cake Pan Size Converter

  1. Choose the recipe’s pan shape and size.
  2. Choose your pan’s shape and size.
  3. Multiply the ingredients by the scale factor shown.

How it works

Pans of the same depth hold batter in proportion to their area: a 9×13 pan is 117 sq in, an 8×8 is 64 sq in, a 9-inch round is about 64 sq in and an 8-inch round about 50 sq in. Divide your pan’s area by the recipe pan’s area to get the scale factor. If you keep the batter the same but use a smaller pan, it will be deeper — lower the oven by 25 °F and bake longer.

Common pan areas

PanArea (sq in)Batter (approx.)
8″ round506 cups
9″ round648 cups
8×8″ square648 cups
9×9″ square8110 cups
9×13″ rectangle11714 cups
10″ round7910 cups
12×18″ half sheet21624 cups

Frequently asked questions

Can I bake a 9x13 recipe in two 8x8 pans?

Almost — two 8×8 pans (128 sq in) slightly exceed a 9×13 (117 sq in), so the cakes will be a little thinner.

Is a 9-inch round the same as an 8x8 square?

Nearly — both are about 64 sq in.

How do I adjust baking time for a different pan?

Shallower batter bakes faster; deeper batter needs a lower temperature and more time. Test with a toothpick.

How full should a cake pan be?

About half to two-thirds full.

Related tools