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 = 480 x 480 = 0.23 megapixels
  • Aspect ratio = 1
  • Angle of diagonal = 0.785 rad = 45°
  • Length of diagonal = 678 pixels

    • Letterboxing

    How does a 1 image fit on a screen with a different aspect ratio?

    Cinema screens

    Cinema 2K scope screen (2.39)

    Using 42 % of the screen

     Pillar box
    Cinema 2K flat screen (1.85)

    Using 54.1 % of the screen

     Pillar box
    Cinema 2K full envelope (1.90)

    Using 52.6 % of the screen

     Pillar box
    Barco Escape Cinema (5.94)

    Using 16.8 % of the screen

     Pillar box

    TV screens

    HD television (16:9)

    Using 56.3 % of the screen

     Pillar box
    Extra Wide TV (21:9)

    Using 43 % of the screen

     Pillar box
    SXGA/QSXGA screen (5:4)

    Using 80 % of the screen

     Pillar box
    SD television (4:3)

    Using 66.7 % of the screen

     Pillar box
    Square screen (1.00)

    Using 100% of the screen

     Perfect match
    Vertical HD screen (0.56)

    Using 55.8 % of the screen

     Letter box

    Compare

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

    ARRI Alexa XT Studio
    Canon EOS 1D C
    Canon EOS C500
    GoPro Hero4
    Phantom Flex4K
    Red Epic Dragon 6K
    Red One 4K
    Red One 5K
    Sony CineAlta 4K

    Photo calculators & converters

    Aspect ratio
    Image Width x Height → aspect ratio
    Aspect Fit
    Fit an image on a screen
    Composition Calculator
    Focal length, distance, crop factor → image composition
    Depth-of-Field Calculator
    Aperture, focal length, distance, crop → depth-of-field
    DPI calculator
    Print Width x Height and dpi → megapixels
    Image filesize calculator
    Image Width x Height JPG/RAW/PNG → bytes
    Light calculator (EV)
    Aperture, shutter time, ISO → Exposure Value
    Megapixel calculator
    Image Width x Height → megapixels
    Megapixel Aspects
    See megapixels in different aspect ratios
    Portrait distance
    portrait distance, composition, crop factor, focal length