Pan Conversion
9-inch to 10-inch Pan Conversion
A 10-inch round pan has notably more area than a 9-inch pan, so unchanged batter becomes shallower and cooks faster.
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 roughly 1.23x to keep depth similar.
- - Unscaled batter in 10-inch pan bakes thinner and faster.
- - Start doneness checks earlier if not scaling up.
FAQ
How much bigger is a 10-inch round than 9-inch?
About 23% more area.
Can I use same batter amount?
Yes, but layer will be thinner and timing changes.
Should I increase ingredients?
If you want original depth and height, scale up.
Will frosting quantities change?
Surface area changes can increase frosting needs.