Convert cake recipes between different pan sizes and shapes. Enter the dimensions of your original and new pan to get the exact scaling factor for ingredients.
Scale Factor
1.01x
Original Volume
127.2 in³
New Pan Volume
128.0 in³
Area Ratio
1.01x
Multiply all ingredient amounts by 1.01
Your new pan is larger — you'll need more batter. Adjust baking time: check 5-10 minutes earlier for larger pans, add time for smaller/deeper pans.
Timing Guidance
Volumes are similar, so baking time should remain roughly the same. Keep an eye on your bake and check a few minutes early.
When changing pan sizes, the volume ratio tells you how much to scale the recipe. But don't forget about baking time — thinner layers bake faster and thicker layers need more time at a lower temperature. Fill pans only ½ to ⅔ full to leave room for rising. If your new pan is much larger, consider making two batches rather than one very thin layer.
Yes! A square pan has about 27% more area than a round pan of the same size. So an 8-inch round recipe works in a 7-inch square pan (they're nearly equal in area). A 9-inch round is close to an 8-inch square. This converter handles the exact math for you.
Yes. Larger, shallower pans bake faster because the batter is spread thinner — check 5-10 minutes earlier. Smaller, deeper pans take longer — add 10-15 minutes and reduce oven temperature by 25°F to prevent over-browning on top before the center is done.
Fill the pan with water and measure the volume in cups. A standard 9-inch round pan (2 inches deep) holds about 8 cups. A 9x13 pan holds about 14 cups. This calculator computes the volume mathematically based on dimensions.
Recipe Scaler Calculator
Scale any recipe up or down. Enter your ingredients, set the original and desired servings, and get perfectly proportioned amounts instantly.
Baking Substitution Calculator
Find the right ingredient substitutions for your baking recipes. Select what you need to replace, enter the amount, and get alternatives with exact measurements.