How is the scaling factor calculated?

The target pan's volume is divided by the original pan's volume. A rectangular pan's volume is length × width × depth, and a round pan's is π × radius² × depth; a tube pan's is the same less its center tube. A factor of 0.5 means half the recipe; 2 means double.

Does it allow for the center tube of a Bundt pan?

Yes. The center tube is taken as a quarter of the pan's diameter, about 2.5 inches across in a 10-inch pan, and subtracted. Fluted and sloping sides hold a little less again, so treat the factor for Bundt pans as an estimate.

What units does it use?

All dimensions are in inches and volumes are in cubic inches. If your pan is measured in centimeters, divide each measurement by 2.54 before entering it.

Do I need to change the baking time?

Often, yes. A shallower pan bakes faster and a deeper one slower, even when the volume matches. The converter only scales the ingredients, so start checking for doneness early.

Baking Pan Converter

Guide

Original pan

Shape

Length

Width

Depth

Common pans

Rectangle

Round

Tube

Target pan

Shape

Length

Width

Depth

Result

Scaling factor

0.547 x

Multiply each ingredient by this

Original volume

234.00 in³

Target volume

128.00 in³

About the Baking Pan Converter

Find out how much to scale a recipe when you bake it in a different pan. Enter the original and target pans as rectangles, rounds or tube pans, and the converter compares their volumes and gives one factor to multiply every ingredient by.

How to use it

1 Under Original pan, choose the Shape and enter the length and width, or the diameter, and the depth in inches. You can also pick one of the Common pans.
2 Under Target pan, enter the shape and size of the pan you want to use.
3 Read the Scaling factor and multiply each ingredient by it.
4 Compare the Original volume and Target volume to see how much more or less batter the new pan holds.

Read the full Baking Pan Converter guide

Original pan

Target pan

Result

About the Baking Pan Converter

How to use it

Frequently asked questions