25cm round tin to 23cm square tin
Multiply every ingredient by
×1.08
A 23cm square tin (9in) has 8% more area than a 25cm round tin (10in). Same depth of cake, more mixture.
| In the recipe | For your tin |
|---|---|
| 100g | 108g |
| 250g | 269g |
| 3 eggs | 3.2 eggs |
Paste your recipe into the scaler, already set to ×1.08. It rounds everything sensibly and tells you what to do with part of an egg.
The working
25cm round tin: 490.87cm² of base. 23cm square tin: 529cm². 529 ÷ 490.87 = 1.08. This assumes both tins are the same depth.