C1

Paper size

648 x 917 mm

International paper size: A

  • 4A
    ×0.15
  • 2A
    ×0.3
  • A0
    ×0.59
  • A1
    ×1.19
  • A2
    ×2.38
  • A3
    ×4.76
  • A4
    ×9.53
  • A5
    ×19.12
  • A6
    ×38.24
  • A7
    ×76.48
  • A8
    ×154.42
  • A9
    ×308.84
  • A10
    ×617.69

International paper size: B

  • 4B
    ×0.11
  • 2B
    ×0.21
  • B0
    ×0.42
  • B1
    ×0.84
  • B2
    ×1.68
  • B3
    ×3.37
  • B4
    ×6.73
  • B5
    ×13.5
  • B6
    ×27.01
  • B7
    ×54.02
  • B8
    ×108.91
  • B9
    ×217.82
  • B10
    ×435.64

International paper size: C

North American paper sizes

Japanese paper sizes

Inch based paper sizes

Metric

  • Kilometre (km)
    6.48×10⁻⁴ x 9.17×10⁻⁴
  • Metre (m)
    0.65 x 0.92
  • Decimetre (dm)
    6.48 x 9.17
  • Centimetre (cm)
    64.8 x 91.7
  • Millimetre (mm)
    648 x 917
  • Micrometre (µm)
    648,000 x 917,000
  • Nanometre (nm)
    648,000,000 x 917,000,000
  • Angstrom (Å)
    6.48×10⁹ x 9.17×10⁹

British/American

  • League
    1.34×10⁻⁴ x 1.9×10⁻⁴
  • Mile (mi)
    4.03×10⁻⁴ x 5.7×10⁻⁴
  • Furlong
    3.22×10⁻³ x 4.56×10⁻³
  • Chain
    0.03 x 0.05
  • Rod (rd)
    0.13 x 0.18
  • Yard (yd)
    0.71 x 1
  • Foot (ft)
    2.13 x 3.01
  • Link
    3.22 x 4.56
  • Hand
    6.38 x 9.03
  • Inch (in)
    25.51 x 36.1
  • Line
    255.12 x 361.02
  • Mil (mil)
    25,511.81 x 36,102.36
  • Thou (thou)
    25,511.81 x 36,102.36

Nautical

  • Nautical mile
    3.5×10⁻⁴ x 4.95×10⁻⁴
  • Fathom
    0.35 x 0.5

Astronomical

  • Parsec (pc)
    2.1×10⁻¹⁷ x 2.97×10⁻¹⁷
  • Light year
    6.85×10⁻¹⁷ x 9.69×10⁻¹⁷
  • Astronomical unit (AE)
    4.33×10⁻¹² x 6.13×10⁻¹²
  • Light minute
    3.6×10⁻¹¹ x 5.1×10⁻¹¹
  • Light second
    2.16×10⁻⁹ x 3.06×10⁻⁹