Paper properties
Basis weight, bulk and density
Convert grammage to imperial basis weights, and work out bulk and density from caliper.
Bulk
1.25cm³/g
- Apparent density
- 800 kg/m³
- Tissue / newsprint / kraft (3000 ft²)
- 49.1 lb
- Bond / writing (17 × 22, 500 sheets)
- 21.3 lb
- Text / book (25 × 38, 500 sheets)
- 54.1 lb
- Cover (20 × 26, 500 sheets)
- 29.6 lb
How it's calculated
Bulk = caliper ÷ grammage. Density = grammage ÷ caliper. Imperial basis weight = grammage × ream area ÷ 453.6 g/lb.