Ordering the right amount of cake is important, this guide will help you:

All my tiered cakes consist of four layers of sponge and three layers of filling which is approximately 6 inches in height. However, I can produce a flatter cake if you wish, which will be two layers of sponge with one layer of filling.

Cake Portion Sizes
Tier Sizes Party Cake portions Wedding Cake portions
5 8 12
6 12 18
7 18 30
8 20 42
9 26 52
10 32 64
11 36 76
12 42 84

 

Cake Portion Sizes
Tier Sizes Party Cake portions Wedding Cake portions
4,6 18 26
4,7 24 38
5,7 26 42
5,8 28 54
6,8 32 60
6,9 38 70
7,9 44 82
7,10 50 94
8,10 52 104
8,11 56 118
9,11 62 128
9,12 68 136
10,12 74 148
4,6,8 38 68
5,7,9 52 94
4,7,10 56 102
6,8,10 64 124
5,8,11 64 136
6,9,12 80 154
4,6,8,10 70 132
5,7,9,11 88 170
6,8,10,12 106 208