Resources Paper & materials Free tool
Paper weight converter
Convert gsm to pounds (and back) across text, cover, bond, index, tag and bristol basis weights, with an approximate point caliper.
Paper weight converter · gsm ↔ lb
Grams per square metre
270 gsm
≈ 11 pt caliper on uncoated cover stock
Equivalent basis weights
- Text / Book / Offset183 lb
- Cover100 lb
- Bond / Writing72 lb
- Index149 lb
- Tag166 lb
- Bristol123 lb
Common picks: 100# gloss text ≈ 148 gsm · 14pt cover ≈ 350 gsm (130# cover) · 16pt ≈ 400 gsm · GF Smith Colorplan 540 gsm ≈ 200# cover.
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