9×13 to 8×8 Rectangle Pan Converter

9×13 to 8×8 Rectangle Pan Converter

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

Quick fact: An 8×8 pan holds about 45% less batter than a 9×13 pan.

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

9×13 to 8×8 Rectangle Pan Conversion Chart

• Multiply any 9×13 recipe amount by 0.547
• Example: 4 cups batter → 2.19 cups (about 45% less)
• Example: 800 g batter → 438 g (about 45% less)
• Example: 3 cups frosting → 1.64 cups (about 45% less)

Formula
new amount = original amount × 0.547

Beginner-Friendly Explanation
An 8×8 pan is much smaller than a 9×13 pan.
It holds only about half as much batter, so you need about 45% less 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 a 9×13 recipe to an 8×8 pan.