Core guide
Cake Pan Converter: Scale Recipe Ingredients Between Pan Sizes
The cake pan converter compares the geometry of the original and target pans. Shape, dimensions and depth produce the recipe multiplier used for ingredient quantities.
Read →PEK Academy
Choose pans, moulds and bowls by size, material, heat transfer and the product you actually bake.
Start here
Core guide
The cake pan converter compares the geometry of the original and target pans. Shape, dimensions and depth produce the recipe multiplier used for ingredient quantities.
Read →Recommended reading
First choose the number of servings and how you will cut them. Then scale the batter by the ratio of pan areas if the batter depth stays the same.
Read →Recommended reading
At 10 cm edible height, PEK’s volume model gives about 20–25 small event servings from a 20 cm round cake, 30–36 from 24 cm, 35–42 from 26 cm and 41–49 from 28 cm when serving…
Read →All content
Calculate each tier separately. For round pans at the same planned batter depth, use factor = new diameter² ÷ original diameter². If the target tier is also taller or shorter, multiply by the height ratio.
To keep roughly the same batter depth, compare the base areas: round = π × r² and square = side². Recipe factor = new pan area ÷ original pan area.
For two round pans when you want the same approximate batter depth, use: scaling factor = (new diameter ÷ original diameter)². Multiply the main ingredients by that factor.
Cut parchment to fit the pan, keep loose edges away from heating elements and follow the maximum temperature printed by the manufacturer.
For most layer cakes and loaf-style cakes, a light-coloured metal pan is the most predictable starting point because it transfers heat quickly without over-browning the edges as readily as a dark pan.
Do not multiply baking time by the same factor used to scale the ingredients. If scaling the recipe into a larger pan keeps batter depth about the same, keep the recipe temperature and start checking around the…
For most home baking, start with a reliable digital scale, two adequately sized bowls, a whisk, a firm spatula, one or two useful pans, baking parchment and a cooling rack.
The same batter spreads over more area in a larger pan, so the layer starts and finishes shorter.
For the same layer depth in two round pans, multiply the entire recipe by new diameter² ÷ old diameter². If the target layer is also deeper or shallower, include the depth ratio.
Pan diameter alone does not determine the correct cake height. If you keep the same height, required cake volume rises with the square of the diameter.
For an 18 → 24 cm round pan, use (24/18)² = 1.78. Scale the formula to keep batter depth similar, weigh eggs without shells, and do not automatically change temperature or multiply bake time just because the…
For a reliable start, use a digital kitchen scale, liquid measuring jug, adequately sized mixing bowl, whisk, sturdy silicone spatula, and at least one good pan or baking sheet suited to what you actually bake.