Price per 1000 sheets: Price = weight per 1000 sheets x price per tonne 1000
 Price per tonne: Price = price per 1000 sheets x 1000 Weight per 1000 sheets
 Number of sheets for a job: Total = number of printed pages of job x copies required x (100 x % overs) number of printed pages per sheet x 100
 Weight of a given number of sheets in kg: Weight = sheet length (m) x sheet width (m) x gsm x number of sheets 1000
 Grammage of a sheet of paper in gsm: Grammage = weight (kg) x 1000 Sheet length (m) x sheet width (m) x number of sheets
 Weight of a job in grammes: Weight = number of printed pages x length of page (m) x width of page (m) x gsm 2 Repeat for each type of paper then add the totals.
 Linear metres on a reel: Length = weight in kg x 1000 Gsm x width in metres Length = p (R-r) (R+r) x 100 Thickness in microns where R= radius of reel in cm and r= outside radius of core in cm.

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