# 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 = `1440` x `2160` = `3.11` megapixels
• Aspect ratio = `0.67`
• Angle of diagonal = 0.983 rad = 56.3°
• Length of diagonal = 2596 pixels
• ### Letterboxing

How does a 0.67 image fit on a screen with a different aspect ratio?

#### Cinema screens

###### Cinema 2K scope screen (2.39)

Using 28 % of the screen

Pillar box
###### Cinema 2K flat screen (1.85)

Using 36 % of the screen

Pillar box
###### Cinema 2K full envelope (1.90)

Using 35.1 % of the screen

Pillar box
###### Barco Escape Cinema (5.94)

Using 11.2 % of the screen

Pillar box

#### TV screens

###### HD television (16:9)

Using 37.6 % of the screen

Pillar box
###### Extra Wide TV (21:9)

Using 28.7 % of the screen

Pillar box
###### SXGA/QSXGA screen (5:4)

Using 53.3 % of the screen

Pillar box
###### SD television (4:3)

Using 44.4 % of the screen

Pillar box
###### Square screen (1.00)

Using 66.7 % of the screen

Pillar box
###### Vertical HD screen (0.56)

Using 83.3 % of the screen

Letter box

### Compare

Compare to aspect ratio standards from:
VideoCinema projectorsCinema camerasPhoto

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