What is 120 GSM paper used for?
Sarah Garza
Updated on February 19, 2026
120-140 gsm – The weight of your average promotional poster. Think movie posters hanging on a teenager’s bedroom walls or product posters hanging in store windows. 210-300 gsm – This thicker type of paper is stiffer but still bendable. You’ll see it used for some magazine covers and higher-quality flyers.
How do you calculate ream weight?
To determine the ream weight of any given size sheet, multiply the square inches in the given size by the given basis weight; divide the result by the square inch area of the basic size.
How do you convert GSM to KG formula?
Weight in kg of a given number of sheets
- L = Length of sheet in metres.
- Swd = Width of sheet in metres.
- Gsm = g/m² of paper.
- Ns = Number of sheets.
How thick is 250gsm paper?
0.23
The Thickness of Printing Paper List
| Name | Thickness/mm |
|---|---|
| 250gsm art paper | 0.23 |
| 300gsm art paper | 0.305 |
| 350gsm art paper | 0.345 |
| 400gsm art paper | 0.41 |
Is 80gsm a good paper?
Thickness of paper is specified by its weight in grams per square metre (GM or GSM). Low grade photocopier paper is around 80gsm; letterheads 100-120gsm with good quality letterhead around 120gsm. Business cards are around 350gsm and flyers around 300gsm-350gsm.
How heavy is a ream of 80gsm paper?
The basis weight is the weight of a 500 sheet ream of uncut paper (see Reams & Quires – Paper Quantities Explained for more information on the ream)….Weights Of Sheets Of A Series Paper Sizes In Ounces.
| Size | 2A0 |
|---|---|
| 75gsm | 5.291oz |
| 80gsm | 5.644oz |
| 90gsm | 6.349oz |
Is 300gsm paper thick?
While GSM does have a relationship with paper thickness (for example, a 300gsm sheet of card is very likely to be thicker than a 100gsm sheet), it is not a reliable measurement for paper and shouldn’t be used as such. Much of this has to do with how we tend to associate the paper weight with thickness.
Is 70 or 75 GSM better?
A 70gsm Eucalyptus-pulp paper can use up to 37% less wood pulp than a standard 80gsm to make the same number of reams. Also, 70 or 75gsm paper is often cheaper because the mills sell paper by the tonne, and you get about 50 more reams of 70gsm in a tonne than you do of 80gsm.
What is the weight of one A4 paper?
0.18 oz
Typical office paper has 80 g/m2 (0.26 oz/sq ft), therefore a typical A4 sheet (1⁄16 of a square metre) weighs 5 g (0.18 oz).
Will 300gsm card go through a printer?
A compact and efficient colour inkjet printer, it can print A3 as well as A4, it can print both sides but it is limited to 220gsm. Others, such as the Canon PIXMA Pro 100S, an all-in-one colour inket, can print up to 300gsm. It’s also important to note that when using card, stick to the printer’s guidelines.
