Paper Weight Converter

Type a weight in GSM or Imperial pounds. The conversion runs both ways across Text, Cover, Bond, and Index basis sizes.

Unit

Weight

Stock

Equivalent in metric

148 gsm

Equivalents in Imperial pounds

Text / Book

25 × 38" basis

68 lb

Cover

20 × 26" basis

37 lb

Bond / Writing

17 × 22" basis

27 lb

Index

25.5 × 30.5" basis

82 lb

Conversions use standard North American basis sizes. Real stock weights vary by mill — always confirm with the spec sheet.

Common Trade Stocks

Trade partners get instant pricing on any custom stock — no more flipping between unit charts.