Grams per square meter to pounds (basis weight)
Type a value in gsm to get it in lb instantly.
That's about the same as copier paper. One A4 sheet weighs about 5 g.
Convert the other way: lb to gsm
What it means
What paper is that?
US basis weight is the weight of 500 sheets at that grade’s own basic size, which is why each grade converts differently.
The math
How to convert gsm to lb
US basis weight depends on the grade’s basic sheet size, so each grade has its own factor: text ×1.48, cover ×2.708, index ×1.807.
Example: 80 gsm = 54.0541 lb.
Pounds below are Text / book. Change the grade and the gsm changes with it.
Every unit
Your paper weight in every unit
Tables
gsm to lb conversion table
| gsm | lb |
|---|---|
| 50 gsm | 33.7838 lb |
| 60 gsm | 40.5405 lb |
| 70 gsm | 47.2973 lb |
| 80 gsm | 54.0541 lb |
| 90 gsm | 60.8108 lb |
| 100 gsm | 67.5676 lb |
| 120 gsm | 81.0811 lb |
| 150 gsm | 101.351 lb |
| 200 gsm | 135.135 lb |
| 250 gsm | 168.919 lb |
| 300 gsm | 202.703 lb |
| 350 gsm | 236.486 lb |
lb to gsm conversion table
| lb | gsm |
|---|---|
| 50 lb | 74 gsm |
| 60 lb | 88.8 gsm |
| 70 lb | 103.6 gsm |
| 80 lb | 118.4 gsm |
| 90 lb | 133.2 gsm |
| 100 lb | 148 gsm |
| 120 lb | 177.6 gsm |
| 150 lb | 222 gsm |
| 200 lb | 296 gsm |
| 250 lb | 370 gsm |
| 300 lb | 444 gsm |
| 350 lb | 518 gsm |
Quick answers
Quick answers
- How many lb is 1 gsm?
- 1 gsm is 0.675676 lb.
- How many lb is 10 gsm?
- 10 gsm is 6.75676 lb.
- How many lb is 80 gsm?
- 80 gsm is 54.0541 lb.
The units
About these units
Grams per square meter (gsm)
The metric standard: the weight of one square meter of the paper, whatever the sheet size.
Pounds (basis weight) (lb)
US basis weight: 500 sheets at the grade’s basic size. Meaningless without knowing the grade.
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