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Calcimator

Paper Weight Converter

Convert GSM to US basis weight for bond, text, cover, and index paper stocks.

Inputs

g/m²

Results

Bond / Writing

31.9 lb

Text / Book81.1 lb
Cover44.4 lb
Index48.8 lb
Approx. Caliper0.18 mils
How to Use This Calculator
  1. Enter the Paper Weight in GSM (grams per square meter) — the universal metric standard.
  2. Review the equivalent Bond/Writing weight, Text/Book weight, and Cover weight in US pounds.
  3. Check the Index weight and approximate Caliper in mils (thousandths of an inch).
  4. Use the Bond weight to compare copy paper (20 lb bond = 75 gsm) and stationery (24 lb = 90 gsm).
  5. Specify GSM to printers internationally to avoid confusion between different US lb categories.
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