8×8 to 9×13 Rectangle Pan Converter

8×8 to 9×13 Rectangle Pan Converter

Need to convert an 8×8 pan recipe to fit a 9×13 pan?
This simple calculator increases the recipe amount using the correct
volume difference so your bars, brownies, and cakes bake evenly.

Quick fact: A 9×13 pan holds about 164% more batter than an 8×8 pan.

Need the Opposite Conversion?
9×13 to 8×8 Rectangle Pan Converter

8×8 to 9×13 Rectangle Pan Conversion Chart

• Multiply any 8×8 recipe amount by 2.64 (about 164% more)
• Example: 2 cups batter → 5.28 cups (about 164% more)
• Example: 300 g batter → 792 g (about 164% more)
• Example: 1 cup frosting → 2.64 cups (about 164% more)

Formula
new amount = original amount × 2.64

Beginner-Friendly Explanation
A 9×13 pan is much larger than an 8×8 pan.
It holds about 164% more batter, so you need much more than your recipe makes.
Just type in the amount your recipe uses, and this tool tells you the new amount.

Use this converter anytime you need to scale an 8×8 recipe to a 9×13 pan.