30 inches

TV & monitor size

25.44 x 15.9 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)
    6.46×10⁻⁴ x 4.04×10⁻⁴
  • Metre (m)
    0.65 x 0.4
  • Decimetre (dm)
    6.46 x 4.04
  • Centimetre (cm)
    64.62 x 40.39
  • Millimetre (mm)
    646.17 x 403.86
  • Micrometre (µm)
    646,174.71 x 403,859.19
  • Nanometre (nm)
    646,174,707.65 x 403,859,192.28
  • Angstrom (Å)
    6.46×10⁹ x 4.04×10⁹

British/American

  • League
    1.34×10⁻⁴ x 8.36×10⁻⁵
  • Mile (mi)
    4.02×10⁻⁴ x 2.51×10⁻⁴
  • Furlong
    3.21×10⁻³ x 2.01×10⁻³
  • Chain
    0.03 x 0.02
  • Rod (rd)
    0.13 x 0.08
  • Yard (yd)
    0.71 x 0.44
  • Foot (ft)
    2.12 x 1.32
  • Link
    3.21 x 2.01
  • Hand
    6.36 x 3.97
  • Inch (in)
    25.44 x 15.9
  • Line
    254.4 x 159
  • Mil (mil)
    25,439.95 x 15,899.97
  • Thou (thou)
    25,439.95 x 15,899.97

Nautical

  • Nautical mile
    3.49×10⁻⁴ x 2.18×10⁻⁴
  • Fathom
    0.35 x 0.22

Astronomical

  • Parsec (pc)
    2.09×10⁻¹⁷ x 1.31×10⁻¹⁷
  • Light year
    6.83×10⁻¹⁷ x 4.27×10⁻¹⁷
  • Astronomical unit (AE)
    4.32×10⁻¹² x 2.7×10⁻¹²
  • Light minute
    3.59×10⁻¹¹ x 2.25×10⁻¹¹
  • Light second
    2.16×10⁻⁹ x 1.35×10⁻⁹