Aspect ratio calculator

Enter width and height

Aspect Ratio (short: A/R) is the width of an image or screen, divided by the height. In landscape orientation, the A/R is > 1, for portrait orientation the A/R is < 1 and for square screens, this is = 1.

Calculation

  • Size = 1380 x 2160 = 2.98 megapixels
  • Aspect ratio = 0.64
  • Angle of diagonal = 1.002 rad = 57.4°
  • Length of diagonal = 2564 pixels

    • Letterboxing

    How does a 0.64 image fit on a screen with a different aspect ratio?

    Cinema screens

    Cinema 2K scope screen (2.39)

    Using 26.6 % of the screen

     Pillar box
    Cinema 2K flat screen (1.85)

    Using 34.2 % of the screen

     Pillar box
    Cinema 2K full envelope (1.90)

    Using 33.3 % of the screen

     Pillar box
    Barco Escape Cinema (5.94)

    Using 10.5 % of the screen

     Pillar box

    TV screens

    HD television (16:9)

    Using 35.7 % of the screen

     Pillar box
    Extra Wide TV (21:9)

    Using 27.2 % of the screen

     Pillar box
    SXGA/QSXGA screen (5:4)

    Using 50.7 % of the screen

     Pillar box
    SD television (4:3)

    Using 42.2 % of the screen

     Pillar box
    Square screen (1.00)

    Using 63.3 % of the screen

     Pillar box
    Vertical HD screen (0.56)

    Using 87.5 % of the screen

     Letter box

    Compare

    Compare to aspect ratio standards from:
    Video • Cinema projectors • Cinema cameras • Photo •

    Canon EOS 5D MkI
    Canon EOS 5D MkII
    Canon EOS 5D MkIII
    Canon EOS 5Ds

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