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Determine the basis weight (in pounds) for a ream of paper of a given basic size and grade based on its weight in grams per square meter. When filling in the grammage field, use either a whole number or a decimal fraction.

For a table of select standard paper weights given in both pounds and grams, see our Equivalent Weights & Grammage Conversion Chart.

Grammage to Basis Weight Calculator
Grams per Square Meter: g
Select…  (Or type in values below.)
Basic Size:
(length × width)
length
width
Basis Weight = lbs.

The numerical results from this calculator are estimates only and are not guaranteed.


Example

Find the basis weight in pounds for a ream of 25″ × 38″ Book paper that weighs 67.3 grams per square meter.

Formula:

 Grams per m2 × Basic Size

1406.5

= Basis Weight (lbs.)

Equation:

 67.3 × (25 × 38)

1406.5

= 45 lbs. (45.46 rounded to the nearest whole number)

 


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