How do I adjust a recipe for a different pan?

Divide your pan's area by the recipe pan's area, then multiply every ingredient by that number.

Do I change the baking time?

Usually a little. A thinner layer bakes faster, so start checking a few minutes early.

Yes, but scale the recipe down and keep the batter depth similar, or it may overflow or bake unevenly.

Baking in a different pan than the recipe calls for? Enter both sizes and get the multiplier for every ingredient, based on the pan's surface area.

Recipe Pan

Your Pan

Scale recipe ingredients when your pan differs from the one the recipe calls for, by comparing pan surface areas — round, square, or rectangular.

multiplier = your pan area ÷ recipe pan area. Round: area = π × (diameter ÷ 2)². Square: side². Rectangle: length × width.

Common questions about Pan Size Converter

We use the standard published formula for this calculation, and we show the working so you can check it.

Spotted a mistake? Tell us and we'll check it within a few days. See how we check our calculators.