/convert/gsm-to-lb/ Convert paper weight from GSM (grams per square metre) to pounds (lb basis weight). Covers text/book stock at the standard 1.48 conversion factor. Referenc article GSM to lb (paper weight) Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
📄 Paper Sizes

GSM to lb (paper weight) Converter

Convert paper weight from GSM (grams per square metre) to pounds (lb basis weight). Covers text/book stock at the standard 1.48 conversion factor. Reference table included.

Quick answer: To convert GSM to lb (text), multiply by 0.675676. For example, 1 GSM = 0.675676 lb (text). Use the calculator below for any value.
GSM to lb
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Common conversions
GSM lb
Formula:

How to convert GSM to lb (text)

1

Enter your value

Type the number of gsm you want to convert into the left box. The result in lb appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — lb to GSM. Your current value carries across so you don't have to re-enter anything.

3

About GSM and lb

Paper weight in the US is given in pounds (lb) based on the weight of 500 sheets at a basis size, while the rest of the world uses GSM (grams per square metre). For text/book paper, the approximate conversion is GSM ÷ 1.48 = lb. Cover stock uses a different basis (GSM ÷ 2.708), so always check whether a paper is text or cover weight.

📊 Common conversions at a glance
GSM lb
60 40.54
75 50.68
80 54.05
90 60.81
100 67.57
120 81.08
Reviewed for 2026. GSM ↔ lb conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.