Paper Weight Calculator
Convert between paper GSM and basis weight. Estimate ream weight and thickness for any sheet size.
Inputs
US basis weight in pounds per 500 sheets of basis size
Results
GSM
80 g/m²
Basis Weight (US)
21 lbs
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Start FreePaper Weight / GSM Converter
Artisan by Irora Labs
March 23, 2026
Inputs
| Mode | convert |
| GSM | 80 g/m² |
| Paper Type | bond |
| Basis Weight (US) | 20 lbs |
| Sheet Width | 8.5 in |
| Sheet Height | 11 in |
| Number of Sheets | 500 |
Results
| GSM | 80 g/m² |
| Basis Weight (US) | 21 lbs |
Created with Artisan. artisan.iroralabs.com/craft-calculators/paper-gsm
Tips
Open formula
Converts between GSM (grams per square meter) and US basis weight using paper-type-specific factors. Calculates total weight for any quantity and sheet size.
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