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Paper Weight Conversion Calculator

LBS to GSM – U.S. to International Paper Weight Conversion – Equivalent Weights & Conversions

Caribbean Commercial Printing Company At Solo Printing, we are happy to provide full-service commercial printing services spanning the United States and some areas of the Caribbean. For our clients who operate in grams, we want to make it as easy as possible for you to quantify the paperweight of your print project.

Grams to Pounds & Pounds to Grams Calculator

Use the paper weight conversion calculator below as a convenient tool to make paperweight conversions for lbs to gsm and gsm to lbs.

lbs to gsm


gsm to lbs


Alternatively, use this chart as a convenient tool to make conversions based on the most common paper weight conversions for lbs to gsm. Below are the paper weights Solo Printing provides in both Standard American Weight and Metric Weight.

STANDARD BASIS WEIGHT (lbs)                        GRAMS/SQUARE METER (gsm)     

1)            20lb Bond/ 50lb Offset                                75 gsm

2)            24lb Bond/ 60lb Offset                                90 gsm

3)            28lb Bond/ 70lb Offset                               105 gsm

4)            32lb Bond/ 80lb Offset                               120 gsm

5)            50lb Book/Text/Offset                                  75 gsm

6)            60lb Book/Text/Offset                                  90 gsm

7)            70lb Book/Text/Offset                                 105 gsm

8)            80lb Book/Text/Offset                                 120 gsm

9)            100lb Book/Text/Offset                              150 gsm

10)          65lb Cover                                                          175 gsm

11)          80lb Cover                                                          215 gsm

12)          100lb Cover                                                        270 gsm

13)          130lb Cover                                                        350 gsm

LBS to GSM Formula:


1lb. of Text paper = 1.48 gsm. Multiply each pound of text paper by 1.48.
1 lb. of Cover paper = 2.708 gsm. Multiply each pound of cover paper by 2.708.


80lb. text = 118.4 gsm
80lb. cover = 216.64 gsm

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