GSM to Pounds Calculator
U.S. lb paper weight depends on the category-specific basis sheet, so the same GSM produces different lb values for bond, text and cover stocks.
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Leave a field blank until you know the real value. InkyValley does not prefill fake demo numbers.
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What this result means
Use this when comparing metric stock specifications with U.S. basis-weight listings.
The calculator is designed to turn a print decision into a comparable production value rather than leave you with raw inputs. Use the result to decide whether the file, material choice, page yield, layout or price needs to change before production.
Calculation
Basis weight is the weight in pounds of 500 sheets at the category basis size; GSM is grams per square meter.
If a printer specifies final trim size, bleed, paper category, page yield or a required margin, use that value rather than a convenient round number. Small input differences can matter when a print run is repeated hundreds or thousands of times.
How to use this tool
- Measure or verify the source.Use the actual file dimensions, paper size, quantity, rated yield, job cost or provider specification.
- Enter one consistent set of units.Do not mix inches and millimeters or gross and net costs unless the field explicitly converts them.
- Read the normalized result.Focus on the production value—such as PPI, cost/page, sheets required, full artwork size or gross margin.
- Verify before production.Where a printer, marketplace or machine controls the specification, confirm the current requirement before committing materials.
Limitations
Conversions are mathematical equivalences; commercial stock names and manufacturer tolerances can differ.
InkyValley separates exact arithmetic from estimates. A mathematically correct result can still be unsuitable if the production process has constraints the calculator cannot observe, such as grain direction, printer margins, ICC profiles, finishing tolerances, maintenance state or provider-specific file checks.