Baking Pan Converter

Compare two pan sizes and get a suggested baking time and temperature change.

Convert a pan size

From pan shape

From pan size

To pan shape

To pan size

Original oven temperature in Celsius

Original baking time in minutes

From: — · To: —

Area: — · —

Area ratio: —

Suggested oven: — · suggested time: —

Batter depth: —

Guidance for swapping pans in cakes, brownies and traybakes. Always check the bake a few minutes before the suggested time.

Choose the shape and size of the pan the recipe was written for.
Choose the shape and size of the pan you actually want to use.
Read the area ratio, the new batter depth and the suggested time and temperature.

Common questions about the free online baking pan converter.

Pick the original pan and the pan you want to use. The tool compares their areas and scales the baking time accordingly.

Batter spreads over the base, so the base area controls the depth. A wider pan makes a thinner layer that bakes faster.

The time is multiplied by the square root of the area ratio, which follows how heat travels through the batter.

Drop the temperature about 15 degrees for each doubling of volume, and raise it slightly for a much smaller pan.

Yes. The rectangle holds about the same volume, so keep the temperature and start checking at roughly the original time.

Use the closest round size for the maths, then add ten to fifteen minutes because a tube pan bakes from the centre outward.

Yes. Deeper batter needs a slower bake so the middle sets, while shallow batter browns quickly and can dry out.

Keep the pan in the middle of the oven so the heat reaches the batter evenly from above and below.

No. The comparison runs entirely in your browser and nothing you choose is sent to a server.

Yes. It is completely free, needs no account and has no limit on how many pans you compare.

Last updated: October 10, 2026