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How to Change Cake Tin Sizes

If you don’t have the exact size of cake tin specified in a recipe, you may be able to use another in your cupboard. This reference table offers some square and rectangular tin options which should be the same depth as the tin you want to replace.

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Round Tin Square Tin Rectangular Tin
10cm/4” 7.5cm/3x3”  -
15cm/6” 12.5 x 12.5cm/5 x 5” 10 x 15cm/4 x 6”
18cm/7” 15 x 15cm/6 x 6” 12.5 x 18cm/5 x 7”

18 x 18cm/7 x 7”

15 x 20cm/6 x 8”
23cm/9” 20 x 20cm/8 x 8” 18 x 23cm/7 x 9”
25cm/10” 23 x 23cm/9 x 9” 18 x 30cm/7 x 12”

25 x 25cm/10 x 10”

23 x 28cm/9 x 11”
30cm/12” 28 x 28cm/11 x 11” 25 x 30cm”/10 x 12”
35cm/14” 30 x 30cm/12 x 12” 28 x 33cm”/11 x 13”
Such useful information. So often I am baking and either wish to change the shape of my bake or haven’t got the right size tin. Unfortunately my maths is not up to snuff to work this out for myself. I have printed this grid off and I will keep it in my baking folder.Thank you, thank you, thank you.
By Fiona
01 Jul 2021

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