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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

≈ 7 bags of sugar

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.

How the result changes with Paper Weight (GSM)

Paper Weight (GSM)Bond / Writing
7820.7 lb
22359.3 lb
397105.6 lb
542144.2 lb

What each input means

Paper Weight (GSM)
Paper weight in grams per square meter — the universal metric standard.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Paper Weight (GSM) = 120 = 1 input(s) provided
  2. Calculate Bond / Writing
    Bond / Writing
    31.9 = 31.9
  3. Calculate Text / Book
    Text / Book
    81.1 = 81.1
  4. Calculate Cover
    Cover
    44.4 = 44.4

Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.

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