Recognised as Paper size
C2
- 458 × 648 mm
- ISO C
C2 measures 458 × 648 mm, or 18.03 × 25.51 inches. Its aspect ratio is 1.4148:1, close to √2, the property that makes each ISO size two of the next one down.
Dimensions
Millimetres458 × 648 mm
Centimetres45.8 × 64.8 cm
Inches18.031 × 25.512 in
Points (72 dpi)1,298.3 × 1,836.9 ptthe PostScript/PDF unit
Area0.29678 m²296,784 mm²
Aspect ratio1.41485:1√2 is 1.41421
At common print resolutions
72 dpi1298 × 1837screen preview
150 dpi2705 × 3827draft print
300 dpi5409 × 7654standard print quality
600 dpi10819 × 15307high quality print
The ISO 216 series
SeriesISO C
Halving ruleCut the long side in half to get the next size downthe √2 ratio is what makes this preserve the shape
Sheets of A4 in this sizeNot applicable
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Also reads as
PaPErC2 (chemical formula)
- Formula
- 453.296 g/mol
- 5 atoms
PaPErC2 has a molar mass of 453.296 g/mol, made up of 5 atoms across 4 elements: 1 × Pa, 1 × P, 1 × Er, 2 × C.
Molar mass
Molar mass453.296 g/mol
Total atoms per molecule5
Distinct elements4
Mass of one molecule7.5271572 × 10^-22 g
Molecules per gram1.3285228 × 10^21
Composition by mass
Pa51%
P6.8%
Er36.9%
C5.3%
Protactinium (Pa)231.04 g/mol, 50.969%
Phosphorus (P)30.974 g/mol, 6.833%
Erbium (Er)167.26 g/mol, 36.899%
Carbon (C × 2)24.022 g/mol, 5.299%
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