Tools / Paper Weight Converter
Convert paper weight across units.
GSM is the reference unit used everywhere on this site. Enter a GSM value to see the equivalent U.S. basis weights.
| Unit | Value | Typical use |
|---|---|---|
| GSM | 110 gsm | Universal reference |
| US Text / Book # | 74# | Interior pages |
| US Cover # | 41# | Cover stock |
| g/1000 sheets (A1) | 110 g/m² | Metric mills |
Conversions use standard basis-weight factors (Text: 25 x 38", Cover: 20 x 26"). Actual caliper (thickness) varies by paper bulk even at the same weight — request a sample kit to compare by hand.