Guides / US Print Specs & GSM Guide
US pound weights, converted to gsm.
North American publishers spec paper in pounds (#); Korean production runs on gsm. Use this table to translate a U.S. spec into the reference points our production team works from.
Text / Book Paper
| U.S. Basis Weight | Approximate GSM |
|---|---|
| 60# Text | ≈ 90 gsm |
| 70# Text | ≈ 105 gsm |
| 80# Text | ≈ 120 gsm |
| 100# Text | ≈ 150 gsm |
Cover Paper
| U.S. Basis Weight | Approximate GSM |
|---|---|
| 80# Cover | ≈ 215 gsm |
| 100# Cover | ≈ 270 gsm |
| 110# Cover | ≈ 300 gsm |
Paper mill and stock type affect actual caliper and gsm — the values above are practical reference points, not a fixed conversion formula.
How to use this table
U.S. pound weights are not directly interchangeable with gsm. Use these values as practical reference points when preparing a quotation, and confirm the final stock with our production team.