Cooking Tools
Pan Size Conversion Calculator
Enter your recipe's called-for pan size and shape to find equivalent-area substitute pans.
Surface area: 63.6 in²
9" round63.6 in² (0% difference)
8x8" square64.0 in² (1% difference)
8" round50.3 in² (21% difference)
11x7" rectangular77.0 in² (21% difference)
Compares surface area (a reasonable stand-in for volume at similar depths) to suggest close substitute pan sizes — if the new pan is a very different depth, adjust the baking time accordingly.
How to use this tool
- 1Choose your pan's shape.
- 2Enter its dimensions.
- 3See the closest-matching alternative pan sizes by surface area.
Frequently asked questions
Does matching area guarantee the same bake time?+
No — if the substitute pan is a different depth, the batter will be thinner or thicker, so you may need to adjust bake time even with matching area.