Calculate Grammage from Basis Weight


Basis weight (in pounds)  =  
Basic Size (width)  =  
Basic Size (height)  =  
 
Grams per square meter  =  

Formula:

Basis Weight x 1406.5

  =  

GRAMS PER SQUARE METER

Basic Size

Example:

Convert 25x38, 60 lb. Offset Paper to grams per square meter

60 x 1406.5

  =  

88.8 Grams per square meter

25 x 38

 

  Table 1 : Basic Sizes
Bond 17 x 22   =   374 Square Inches
Book & Offset 25 x 38   =   950 Square Inches
Tag 25 x 36   =   864 Square Inches
Index 25.5 x 30.5   =   778 Square Inches
Vellum Bristol 22.5 x 30.5   =   641 Square Inches
Coated Cover C2S 24 x 36   =   864 Square Inches
Coated Cover C1S 24 x 36   =   864 Square Inches
Index 25 x 38   =   950 Square Inches
Opaque Cover 20 x 26   =   520 Square Inches

 

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