How Full Should a Cake Tin Be?

Unless otherwise noted, filling pans around 2/3 full is the best practice. This leaves room for rising. For example, my vanilla cake recipe yields around 8 cups of batter which I divide between 3 9×2 inch round cake pans.

How much should a cake pan be filled?

But even in these stickier situations, there's a good rule of thumb that'll save you the mess every single time: Only fill your cake pans three-quarters of the way. Give your cake some breathing room, even if it means you've got leftover batter.

How full is a cake tin?

The golden rule for filling tins:

To prevent cakes and cupcake cases from overflowing and making a mess of your oven, only fill your tins two-thirds full and this will leave plenty of room for the cake to rise.