Baking Pan Size Converter

Often yes. An 8-inch square pan has almost the same area as a 9-inch round pan, so they hold a similar amount of batter and are usually interchangeable without changes.

Divide the new pan area by the original pan area to get a scale factor, then multiply every batter ingredient by it. This keeps the batter depth, and the bake time, similar.

Keep the temperature the same. Pan area changes how much batter you need, not how hot the oven should be. Adjust the bake time instead and test with a skewer.

Fill a cake or batter pan about two thirds full. That leaves room to rise without overflowing. If a swap would overfill the pan, use a larger pan or bake in batches.

This tool compares surface area, which drives how thin or thick the batter sits. Most standard pans are a similar depth, so area is the main factor, but very shallow or deep pans need a closer eye on bake time.