Aspect ratio calculator

Give the size of the image in pixels

Calculation

  • 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.
  • Size = 3840 x 2160 = 8.29 megapixels
  • Aspect ratio = 1.78
  • Angle of diagonal = 0.512 rad = 29.4°
  • Length of diagonal = 4406 pixels
  • Compare

    Letterboxing

    How does a 1.78 image fit on a screen with a different aspect ratio?

    Barco Escape Cinema (5.94)

    Using 29.8 % of the screen

    Pillar box
    Cinema 2K scope screen (2.39)

    Using 74.4 % of the screen

    Pillar box
    Cinema 2K flat screen (1.85)

    Using 95.7 % of the screen

    Pillar box
    Cinema 2K full envelope (1.90)

    Using 93.7 % of the screen

    Pillar box
    Extra Wide TV (21:9)

    Using 74.7 % of the screen

    Pillar box
    SXGA/QSXGA screen (5:4)

    Using 70 % of the screen

    Letter box
    HD television (16:9)

    Using 100% of the screen

    Perfect match
    SD television (4:3)

    Using 75 % of the screen

    Letter box
    Square screen (1.00)

    Using 56 % of the screen

    Letter box
    Vertical HD screen (0.56)

    Using 31 % of the screen

    Letter box