Cake Pan Size Converter
Compare source and target cake-pan dimensions, pan counts, and batter depths to calculate a transparent recipe multiplier.
Scale by usable batter volume
Two pans with different shapes can hold comparable batter. This calculator computes plan area, multiplies by intended batter depth and pan count, then compares total volumes.
Using batter depth instead of the pan's full rim height prevents a deep unused rim from inflating the result.
Baking time still needs judgment
A wider, shallower layer usually bakes faster than a narrow, deep cake. Material, colour, oven calibration, recipe aeration, and batter chemistry also matter.
Keep the oven temperature from the tested recipe unless trusted recipe guidance says otherwise, and begin checking doneness early.
Examples
8-inch to 9-inch round
Input
One 8 × 2 in round to one 9 × 2 in round
Show result
Result
1.266x, or about 126.6% of the batter
Frequently Asked Questions
Should I enter the full pan height?
Enter the depth you intend the batter to occupy. Cakes need headroom to rise.
Will baking time stay the same?
Not necessarily. Changed depth and surface area affect heating, so check doneness early.
References
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