8×8 to 9×9 Square Pan Converter

8×8 to 9×9 Square Pan Converter

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

Quick fact: A 9×9 square pan holds about 25% more batter than an 8×8 pan.

Need the Opposite Conversion?
9×9 to 8×8 Square Pan Converter

8×8 to 9×9 Square Pan Conversion Chart

• Multiply any 8×8 recipe amount by 1.265
• Example: 2 cups batter → 2.53 cups (about 25% more)
• Example: 500 g batter → 632.5 g (about 25% more)
• Example: 1 cup frosting → 1.27 cups (about 25% more)

Formula
new amount = original amount × 1.265

Beginner-Friendly Explanation
A 9×9 square pan is about 25% bigger than an 8×8 pan.
That means you need about one-quarter more batter 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 9×9 pan.