Ready Reckoner for Marzipan and Sugarpaste

The table below gives a guide to the quantity of marzipan and sugarpaste you will need for various shapes and sizes of cake.  NB only one weight is given for each size of cake - you will need this weight of sugarpaste AND of marzipan if using both.

As a general guide, we allow 15g each of sugarpaste and marzipan per square inch of cake. Using the quantities below should cover the cake to a depth of approx 5mm - the exact weight you use will depend on how thinly you roll the paste.  Don't forget you will need to allow more sugarapaste if covering the board - the exact quantity will depend on your method of covering.

A standard 3 tier cake will usually need a 5kg box of icing.  For a Royal Iced cake, the amount of marzipan will be half the weight of the fruit cake base. 

Size in Inches	Weight for a Round Cake	Weight for a Square Cake
6"	500g	750g
7"	750g	875g
8"	875g	1kg
9"	1kg	1.25kg
10"	1.25kg	1.5kg
11"	1.5kg	1.75kg
12"	1.75kg	2.2kg

 

 

 

 

 

 

 

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You can also use our Portion Calculator to help decide what size cake you want, and our Ribbon Calculator to find out how much ribbon is needed for your boards and cakes.

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