Cost price calculator
Enter the ingredients with their price per kilogram, the number of pieces, packaging, work and energy – the calculator shows what one piece really costs you.
Cake size for a number of guests
How many slices does your tin give, and how big a tin do you need for a number of guests? We work it out from the cake's volume, not by eye.
How we calculate
- The cake's volume is the tin's area × the cake's height. A round tin: π × (diameter ÷ 2)².
- A dessert slice is about 4 × 10 × 8 cm (320 cm³), a party or wedding slice 2.5 × 8 × 10 cm (200 cm³).
- For a number of guests we find the smallest standard round tin (from Ø 12 to Ø 32 cm) that gives enough slices at the chosen height.
Frequently asked questions
How many people does a Ø 26 cm cake serve?
At a height of 8 cm about 13 dessert slices or 21 party slices. A taller cake gives more slices.
Why does the height matter so much?
Because a slice is cut through the cake's height: a cake 12 cm tall gives 50 % more slices than one 8 cm tall at the same diameter.
How do I convert a recipe to another tin?
The Cake converter in a free BAM Academy account does that: enter the recipe's tin and yours, and it converts every ingredient.
The app goes further
The Cake converter in the app converts a whole recipe to another tin or number of slices, rounds eggs to whole ones, counts the slices of tiered cakes and suggests the baking time and temperature.
Start for freeA free account: the trailer and first lesson of every course, no card needed.
More tools
Selling price calculator
From the cost price of a piece, work out the selling price with VAT that leaves you the margin you want. You also see the profit, markup and break-even price.
Allergen label generator
Enter the ingredients and grams: the generator sorts them by weight, highlights the allergens and writes the label text.