Need to convert a 9-inch round cake recipe to fit an 8-inch round pan? This simple calculator reduces the recipe amount using the correct volume difference so your cake bakes evenly without overflowing.
Quick fact: An 8-inch round pan holds about 20% less batter than a 9-inch pan.
9-Inch to 8-Inch Round Pan Converter
Need the Opposite Conversion?
8-Inch to 9-Inch Round Pan Converter
9-Inch to 8-Inch Round Pan Conversion Chart
• Divide any 9-inch recipe amount by 1.265
• Example: 3 cups batter → 2.37 cups (about 20% less)
• Example: 700 g batter → 553 g (about 20% less)
• Example: 2 cups frosting → 1.58 cups (about 20% less)
Formula
new amount = original amount ÷ 1.265
Beginner-Friendly Explanation
An 8-inch round pan is about 20% smaller than a 9-inch pan. That means you need about one-fifth less 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 a 9-inch round cake recipe to an 8-inch pan.