Baking Pan Size Converter
Compare round or rectangular baking-pan areas and estimate how much to scale a recipe.
Scale batter by the ratio of the new pan’s surface area to the original pan’s area. Similar pan depth gives the most reliable result.
Your result36× the recipe
Round-pan area ratio from 1 in to 6 in diameter.
Formula: new diameter² ÷ original diameter²Use it well
Step by step
- 1
Choose round or rectangular pans.
- 2
Enter the original and new pan dimensions in inches.
- 3
Multiply the recipe by the displayed factor and start checking doneness earlier when the batter is shallower.
Source & method
Reference: USDA FoodData Central and published package measures. Results are practical estimates; complete labels, package directions, product specifications, and qualified professional advice take priority.