As a rule of thumb, a square tin holds about 25% more than a round tin of the same size. If you are using a square tin for a round tin recipe, keep the temperature the same but turn the cake through cooking as the corners tend to cook quicker.
Round Tin | Square Tin |
15cm | 13cm |
20cm | 18cm |
23cm | 20cm |
28cm | 25.5cm |