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#1
09-30-2008, 08:47 PM
 Unregistered Guest Posts: n/a
How to convert GSM in to micron

How to convert GSM paper i.e. 205 in to micron.
#2
10-01-2008, 04:14 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,536 Rep Power: 19
Re: How to convert GSM in to micron

Quote:
 Originally Posted by Unregistered How to convert GSM paper i.e. 205 in to micron.
GSM represents the weight of a certain area of paper. It stands for grams per square meter, g/m². If you knew, the density, which is weight per unit volume, you could divide it by the gsm weight and get thickness (in meters). However different paper products vary in density according to how they are made, surface coatings etc.

You could make a rough estimate that the density is around 700-800 kg/m³. While it might be a good "typical" I am sure there are paper products outside this range.

It would be better to measure the "caliper" of the paper.
#3
10-01-2008, 01:18 PM
 Mrs X can't count, can't spell! Join Date: Feb 2006 Location: New Zealand Posts: 2,436 Rep Power: 12
Re: How to convert GSM in to micron

You could also measure the height of a ream of paper (eg. 500 sheets), and divide the measured height by 500. This gives the thickness of a single piece of paper.
#4
10-01-2008, 01:23 PM
 Mrs X can't count, can't spell! Join Date: Feb 2006 Location: New Zealand Posts: 2,436 Rep Power: 12
Re: How to convert GSM in to micron

i think 205gsm paper comes in 100 sheets per ream.
#5
08-10-2009, 01:13 AM
 Unregistered Guest Posts: n/a
Re: How to convert GSM in to micron

350 gsm convert to micron
#6
10-17-2009, 03:28 AM
 Unregistered Guest Posts: n/a
Re: How to convert GSM in to micron

convert 100 microns of poster paper into gsm
#7
01-04-2010, 11:10 PM
 rohitshukla Guest Posts: n/a
Re: How to convert GSM in to micron

to get the formula of conversion of gsm to microns
#8
01-05-2010, 03:07 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,536 Rep Power: 19
Re: How to convert GSM in to micron

Quote:
 Originally Posted by rohitshukla to get the formula of conversion of gsm to microns
See post #2, but if you don't know the density already, it would be easier to just measure the thickness.
#9
01-07-2010, 04:39 AM
 ss_mrithyunjaya Guest Posts: n/a
Re: How to convert GSM in to micron

Quote:
 Originally Posted by JohnS GSM represents the weight of a certain area of paper. It stands for grams per square meter, g/m². If you knew, the density, which is weight per unit volume, you could divide it by the gsm weight and get thickness (in meters). However different paper products vary in density according to how they are made, surface coatings etc. You could make a rough estimate that the density is around 700-800 kg/m³. While it might be a good "typical" I am sure there are paper products outside this range. It would be better to measure the "caliper" of the paper.
#10
01-07-2010, 10:29 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,536 Rep Power: 19
Re: How to convert GSM in to micron

Quote:
 Originally Posted by ss_mrithyunjaya please reply for conversion of 4.3 g/sqm to microns
What is the density? If I assume 750 kg/m³, then
4.3 g/m² x 1 m³/750 kg = 5.7 µm

Of course, if the density is wrong, the answer is wrong.

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