Paper weight
120 gsm paper
120 gsm paper equals 31.9 lb bond, 81.1 lb text or 44.4 lb cover. Typical uses: flyers, brochures, premium letterhead, art-book interiors. Noticeably substantial; coated versions are common for brochures.
31.9 lbbond / writing
81.1 lbtext / book
44.4 lbcover
≈ 150 µmthickness (uncoated)
Equivalent US basis weights
| Grade | Pounds | Basic sheet |
|---|---|---|
| Bond / Writing | 31.9 lb | 17 x 22 in |
| Text / Book / Offset | 81.1 lb | 25 x 38 in |
| Cover | 44.4 lb | 20 x 26 in |
| Index | 66.4 lb | 25.5 x 30.5 in |
| Bristol | 54.7 lb | 22.5 x 28.5 in |
| Newsprint / Tag | 73.7 lb | 24 x 36 in |
Estimated thickness and pages per inch
| Paper type | Caliper | Points (mil) | Pages per inch | Spine for 300 pp |
|---|---|---|---|---|
| Uncoated offset | 150 µm | 5.9 pt | 339 PPI | 0.886 in |
| Bulky book paper | 180 µm | 7.1 pt | 282 PPI | 1.063 in |
| Coated (gloss/silk) | 108 µm | 4.3 pt | 470 PPI | 0.638 in |
Caliper ≈ grammage × bulk. Ask your printer for the measured caliper of the actual stock.
Sheet and ream weights
| Sheet | One sheet | Ream (500 sheets) |
|---|---|---|
| A4 | 7.48 g | 3.74 kg |
| US Letter | 7.24 g | 8 lb |
What it is used for
Flyers, brochures, premium letterhead, art-book interiors. Noticeably substantial; coated versions are common for brochures.