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Baking Pan Size Converter

Compare baking pan areas and adjust recipe quantities for a different pan size.

Measurement unit

Original pan

in
in

New pan

in
Pan note: Area scaling keeps batter depth closer to the original, but oven behavior and recipe structure still matter.
Recipe scale factor
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Enter pan dimensions to compare.

Original area
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New area
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Area change
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Baking Pan Tips

Use area as a starting point, then adjust for batter depth and doneness.

Similar area

Within about 10%, most recipes can usually keep the original amount.

Larger pan

A larger pan makes the bake thinner unless you scale the recipe up.

Smaller pan

A smaller pan makes the bake deeper and often needs more time.

Baking Pan Size FAQ

Common questions about adapting recipes to different pans.

How do I scale a recipe for a different pan?

Compare the pan areas. If the new pan area is 25% larger, multiply the recipe by 1.25 to keep the same batter depth.

Does baking time change with pan size?

Usually. A shallower bake often cooks faster, while a deeper bake often needs more time. Start checking early when changing pan depth.

Can I compare round and rectangular pans?

Yes. The calculator compares surface area, so it can scale between round, square, and rectangular pans.