GSM and Basis Weight Converter
Convert a stated basis weight only after identifying the stock?셲 basis sheet size.
Paper grades use different basis sizes; this tool intentionally requires dimensions rather than guessing a grade.
When to use this calculator
Translate a named paper basis weight only when the grade?셲 basis sheet is known.
Inputs explained
Basis pounds, basis width and basis height must belong to the same paper grade.
Calculation method and formula
The calculator applies the displayed input relationship and rounds only the displayed result.
Worked example
An 80 lb stock on a 25 횞 38 in basis sheet converts to about 118 gsm.
How to interpret the result
Use the result to compare stock descriptions across regional suppliers.
Production considerations
Review stock, equipment, finishing sequence and job tolerances before release.
Common mistakes
Entering text basis dimensions for cover stock produces a misleading conversion.
Limitations
This estimate does not replace the production specification, supplier data sheet, or final press approval.