Convert between GSM and US basis weight for Bond, Text, Cover, Bristol, and Index. Use for specs and procurement.
Choose a paper grade (Bond, Text, Cover, Bristol, Index, Tag, or Newsprint), enter a value in GSM or basis weight, and select the conversion direction. The tool uses standard size factors per grade to convert between metric grammage and US basis weight.
The result is the equivalent weight in the other system. Basis weight is the weight in pounds of a ream (500 sheets) at that grade's standard sheet size. GSM is grams per square meter and is the same across all grades.
Using the wrong grade (e.g. Text vs Cover) will give a different basis weight for the same GSM. Mixing up GSM and basis weight when ordering can lead to the wrong paper. Always confirm the grade and unit with your supplier.