Paper weight
170 gsm paper
170 gsm paper equals 45.2 lb bond, 114.9 lb text or 62.9 lb cover. Typical uses: posters, brochure covers, photo books, art prints. Heavy text weight; folds may need scoring on coated stock.
45.2 lbbond / writing
114.9 lbtext / book
62.9 lbcover
≈ 212 µmthickness (uncoated)
Equivalent US basis weights
| Grade | Pounds | Basic sheet |
|---|---|---|
| Bond / Writing | 45.2 lb | 17 x 22 in |
| Text / Book / Offset | 114.9 lb | 25 x 38 in |
| Cover | 62.9 lb | 20 x 26 in |
| Index | 94 lb | 25.5 x 30.5 in |
| Bristol | 77.5 lb | 22.5 x 28.5 in |
| Newsprint / Tag | 104.5 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 | 212 µm | 8.4 pt | 239 PPI | 1.255 in |
| Bulky book paper | 255 µm | 10 pt | 199 PPI | 1.506 in |
| Coated (gloss/silk) | 153 µm | 6 pt | 332 PPI | 0.904 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 | 10.6 g | 5.3 kg |
| US Letter | 10.25 g | 11.3 lb |
What it is used for
Posters, brochure covers, photo books, art prints. Heavy text weight; folds may need scoring on coated stock.