Plan servings for a round cake by diameter and layers.
Serving counts scale from an 8-inch, two-layer baseline that serves roughly eleven, adjusted by area and layer count. Cake portions vary widely, so giving several cut styles keeps you from over-baking or running short at a party.
Cake Serving
Servings scale by (diameter / 8)^2 x (layers / 2), relative to a standard 8-inch two-layer cake
Servings scale by (diameter / 8)^2 x (layers / 2), relative to a standard 8-inch two-layer cake Serving counts scale from an 8-inch, two-layer baseline that serves roughly eleven, adjusted by area and layer count.
Cake portions vary widely, so giving several cut styles keeps you from over-baking or running short at a party.
This calculator takes 2 inputs: Cake diameter, Layers. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.