25cm square tin to 28cm round tin
Multiply every ingredient by
×0.99
A 28cm round tin (11in) has 1% less area than a 25cm square tin (10in). Same depth of cake, less mixture.
| In the recipe | For your tin |
|---|---|
| 100g | 99g |
| 250g | 246g |
| 3 eggs | 3 eggs |
Paste your recipe into the scaler, already set to ×0.99. It rounds everything sensibly and tells you what to do with part of an egg.
The working
25cm square tin: 625cm² of base. 28cm round tin: 615.75cm². 615.75 ÷ 625 = 0.99. This assumes both tins are the same depth.