Paper Weight Calculator

Your details

Sheet weight mode calculates the total mass of a stack. Conversion modes translate between metric GSM and US lbs.
Grams per square metre (GSM or g/m²) - the international paper weight standard.
g/m²
Choose a standard paper size or enter custom dimensions below.
Total number of sheets in your stack or ream.
sheets
US basis weight is measured on a type-specific parent sheet. The same physical paper carries different pound ratings depending on the stock category.
Total weightStandard ream weight
2,494.8g

Combined mass of all sheets in grams

Weight per sheet4.99g
Total weight (kg)2.495kg
Total weight (lbs)5.5lbs
Sheet area0.0624

500 sheets of 80 g/m² A4 paper weigh 2.49 kg (5.50 lbs).

  • Each individual sheet weighs 4.99 g - multiply by your sheet count to get the stack weight.
  • At 2.49 kg this is a manageable weight for a standard ream box.
  • For shipping estimates, carriers typically round up to the next 0.5 kg or 1 lb, so budget for 2.5 kg.

Next stepTo compare across paper grades, switch to the GSM/lbs conversion mode and look up how your grammage translates to a US basis weight.

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