Pan Conversion
9x13 to 9-inch Round Conversion
A 9-inch round pan holds much less base area than a 9x13 sheet-style pan, so this swap needs a major downscale.
Pan Size Converter
Converting a 9×13 to an 8×8aFind out exactly how to scale your recipe and adjust bake time.
Units
9x13" -> 8x8"
x0.55 multiplier
Recipe scaling
scale ingredients down × 0.55
Area ratio: 64 / 117 sq in
Bake time
Decrease bake time by 10–20%
Depth & temp
Batter will be deeper - reduce oven temp by 10-15 °C (25 °F) and check early.
Multiplier is based on pan area. For recipes measured by volume (cups, mL), multiply each ingredient by ×0.55. Always check doneness with a toothpick - oven variations apply.
Popular conversions
What Matters for This Conversion
- - Use about 0.54x ingredient multiplier.
- - Batter will be deeper in the round pan.
- - Lower oven slightly and watch center doneness.
FAQ
What is the 9x13 to 9-inch round ratio?
Roughly 0.54x by area.
Can I split into two 9-inch rounds instead?
Yes. Two rounds often fit the full original batter better.
Will baking time increase?
Center bake often takes longer when depth increases.
Do I need parchment?
For round cake release, parchment on the base is strongly recommended.