20 inches

TV & monitor size

15.62 x 12.49 in

Aspect ratio 4:3

Aspect ratio 5:4

Aspect ratio 16:9

Aspect ratio 16:10

Aspect ratio 21:9

Aspect ratio 32:9

Metric

  • Kilometre (km)
    3.97×10⁻⁴ x 3.17×10⁻⁴
  • Metre (m)
    0.4 x 0.32
  • Decimetre (dm)
    3.97 x 3.17
  • Centimetre (cm)
    39.67 x 31.73
  • Millimetre (mm)
    396.68 x 317.35
  • Micrometre (µm)
    396,681.36 x 317,345.08
  • Nanometre (nm)
    396,681,355.2 x 317,345,084.16
  • Angstrom (Å)
    3.97×10⁹ x 3.17×10⁹

British/American

  • League
    8.22×10⁻⁵ x 6.57×10⁻⁵
  • Mile (mi)
    2.46×10⁻⁴ x 1.97×10⁻⁴
  • Furlong
    1.97×10⁻³ x 1.58×10⁻³
  • Chain
    0.02 x 0.02
  • Rod (rd)
    0.08 x 0.06
  • Yard (yd)
    0.43 x 0.35
  • Foot (ft)
    1.3 x 1.04
  • Link
    1.97 x 1.58
  • Hand
    3.9 x 3.12
  • Inch (in)
    15.62 x 12.49
  • Line
    156.17 x 124.94
  • Mil (mil)
    15,617.38 x 12,493.9
  • Thou (thou)
    15,617.38 x 12,493.9

Nautical

  • Nautical mile
    2.14×10⁻⁴ x 1.71×10⁻⁴
  • Fathom
    0.22 x 0.17

Astronomical

  • Parsec (pc)
    1.29×10⁻¹⁷ x 1.03×10⁻¹⁷
  • Light year
    4.19×10⁻¹⁷ x 3.35×10⁻¹⁷
  • Astronomical unit (AE)
    2.65×10⁻¹² x 2.12×10⁻¹²
  • Light minute
    2.21×10⁻¹¹ x 1.76×10⁻¹¹
  • Light second
    1.32×10⁻⁹ x 1.06×10⁻⁹