Cake tin conversion charts

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Various cake tins

Cake tin conversion charts

These tables only apply if the cakes are to be the same height as the original recipe. Also you may need to reduce or increase the temperature and cooking time if there is a large difference between the original cake diameter and the one you are making. You need to multiply the figure in the last column (X BY) the original quantity given for each ingredient (flour, sugar etc), to calculate what you will need for the tin size you want to use.

Round to round or square to square only. See below for round to square and square to round equivalents, plus egg quantities.

ORIGINAL TIN SIZE	DESIRED TIN SIZE	X BY
13 cm / 5 inch	15 cm / 6 inch	1.44
13 cm / 5 inch	18 cm / 7 inch	1.96
13 cm / 5 inch	20 cm / 8 inch	2.56
13 cm / 5 inch	23 cm / 9 inch	3.24
13 cm / 5 inch	25 cm / 10 inch	4.00
13 cm / 5 inch	28 cm / 11 inch	4.84
13 cm / 5 inch	30 cm / 12 inch	5.76
13 cm / 5 inch	36 cm / 14 inch	7.84
15 cm / 6 inch	13 cm / 5 inch	0.69
15 cm / 6 inch	18 cm / 7 inch	1.36
15 cm / 6 inch	20 cm / 8 inch	1.78
15 cm / 6 inch	23 cm / 9 inch	2.25
15 cm / 6 inch	25 cm / 10 inch	2.78
15 cm / 6 inch	28 cm / 11 inch	3.36
15 cm / 6 inch	30 cm / 12 inch	4.00
15 cm / 6 inch	36 cm / 14 inch	5.44
18 cm / 7 inch	13 cm / 5 inch	0.51
18 cm / 7 inch	15 cm / 6 inch	0.73
18 cm / 7 inch	20 cm / 8 inch	1.31
18 cm / 7 inch	23 cm / 9 inch	1.65
18 cm / 7 inch	25 cm / 10 inch	2.04
18 cm / 7 inch	28 cm / 11 inch	2.47
18 cm / 7 inch	30 cm / 12 inch	2.94
18 cm / 7 inch	36 cm / 14 inch	4.00
20 cm / 8 inch	13 cm / 5 inch	0.39
20 cm / 8 inch	15 cm / 6 inch	0.56
20 cm / 8 inch	18 cm / 7 inch	0.77
20 cm / 8 inch	23 cm / 9 inch	1.27
20 cm / 8 inch	25 cm / 10 inch	1.56
20 cm / 8 inch	28 cm / 11 inch	1.89
20 cm / 8 inch	30 cm / 12 inch	2.25
20 cm / 8 inch	36 cm / 14 inch	3.06
23 cm / 9 inch	13 cm / 5 inch	0.31
23 cm / 9 inch	15 cm / 6 inch	0.44
23 cm / 9 inch	18 cm / 7 inch	0.60
23 cm / 9 inch	20 cm / 8 inch	0.79
23 cm / 9 inch	25 cm / 10 inch	1.23
23 cm / 9 inch	28 cm / 11 inch	1.49
23 cm / 9 inch	30 cm / 12 inch	1.78
23 cm / 9 inch	36 cm / 14 inch	2.42
25 cm / 10 inch	13 cm / 5 inch	0.25
25 cm / 10 inch	15 cm / 6 inch	0.36
25 cm / 10 inch	18 cm / 7 inch	0.49
25 cm / 10 inch	20 cm / 8 inch	0.64
25 cm / 10 inch	23 cm / 9 inch	0.81
25 cm / 10 inch	28 cm / 11 inch	1.21
25 cm / 10 inch	30 cm / 12 inch	1.44
25 cm / 10 inch	36 cm / 14 inch	1.96
28 cm / 11 inch	13 cm / 5 inch	0.21
28 cm / 11 inch	15 cm / 6 inch	0.30
28 cm / 11 inch	18 cm / 7 inch	0.40
28 cm / 11 inch	20 cm / 8 inch	0.53
28 cm / 11 inch	23 cm / 9 inch	0.67
28 cm / 11 inch	25 cm / 10 inch	0.83
28 cm / 11 inch	30 cm / 12 inch	1.19
28 cm / 11 inch	36 cm / 14 inch	1.62
30 cm / 12 inch	13 cm / 5 inch	0.17
30 cm / 12 inch	15 cm / 6 inch	0.25
30 cm / 12 inch	18 cm / 7 inch	0.34
30 cm / 12 inch	20 cm / 8 inch	0.44
30 cm / 12 inch	23 cm / 9 inch	0.56
30 cm / 12 inch	25 cm / 10 inch	0.69
30 cm / 12 inch	28 cm / 11 inch	0.84
30 cm / 12 inch	36 cm / 14 inch	1.36
36 cm / 14 inch	13 cm / 5 inch	0.13
36 cm / 14 inch	15 cm / 6 inch	0.18
36 cm / 14 inch	18 cm / 7 inch	0.25
36 cm / 14 inch	20 cm / 8 inch	0.33
36 cm / 14 inch	23 cm / 9 inch	0.41
36 cm / 14 inch	25 cm / 10 inch	0.51
36 cm / 14 inch	28 cm / 11 inch	0.62
36 cm / 14 inch	30 cm / 12 inch	0.73

ROUND	SQUARE	EGGS (Fruit cake)	EGGS (Sponge cake)
13 cm / 5 inch	10 cm / 4 inch	2	3
15 cm / 6 inch	13 cm / 5 inch	2	4
18 cm / 7 inch	15 cm / 6 inch	3	5
20cm / 8 inch	18 cm / 7 inch	4	6
23 cm / 9 inch	20cm / 8 inch	5	8
25 cm / 10 inch	23 cm / 9 inch	7	10
28 cm / 11 inch	25 cm / 10 inch	9	12
30 cm / 12 inch	28 cm / 11 inch	12	15
36 cm / 14 inch	30 cm / 12 inch	13	20