Useful book printing calculations

What is volume?

It is a measurement of the relative bulk of paper for a given grammage. The higher the volume number the bulkier the stock. The basis is that 10 leaves of 100gsm Volume 10 = 1mm.

How do I calculate the spine width of a title?

No. of pp x volume no. x grammage
20,000

= Bulk in mm

How does caliper relate to volume?

Caliper in microns =

volume no. x grammage
10


Printing calculations

To calculate the cost in £ per 1000 sheets if given the price per tonne (1000kg) and weight per 1000 sheets :

Price in £ per tonne x kg per 1000 sheets
1000

To calculate the number of tonnes from a number of sheets :

Area x grammage x number of sheets in 1,000s
1000

To calculate the cost per 1000 sheets if given the price in pence per kg and weight in kg per 1000 sheets :

Price in pence per kg x kg per 1000 sheets
1000

To calculate the cost per 1000 sheets of a size in mm given the price in
£ per square metre :

Price x sheet dimensions
1000

To calculate volume where caliper and substance are known :

Caliper (micrometers) x 10
g/m2

= Volume

To calculate the price per 1000 sheets for a certain tonnage :

1st dimension (mm) x 2nd dimension (mm) x g/m2
1,000 000

= kg per 1000 sheets

Followed by :

Price per tonne x kg per 1000 sheets
1000

= Price per 1000 sheets

To calculate the grammage, given sheet size in mm and weight in kg per 1000 sheets :

kg per 1000 sheets x 1,000,000
length in mm x width in mm

To obtain weight in kg per 1000 sheets, given the sheet size in mm and grammage:

Length in mm x width in mm x g/m2
1,000,000

To calculate the number of sheets per tonne (1000kg) given kg per 1000 sheets of the paper :

1,000,000
kg per 1000 sheets

To calculate weight in kg of quantity ordered in sheets, given weight in kg per 1000 sheets :

kg per 1000 sheets x number of sheets
1000

To convert weight in per 1000 sheets in one size to kg weight per 1000 sheets in another size :

given weight x dimensions of unknown size
dimensions of given size