# 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 = `100000` x `10000` = `1000` megapixels
• Aspect ratio = `10`
• Angle of diagonal = 0.1 rad = 5.7°
• Length of diagonal = 100498 pixels
• ### Letterboxing

How does a 10 image fit on a screen with a different aspect ratio?

#### Cinema screens

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

Using 23.3 % of the screen

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

Using 18.3 % of the screen

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

Using 18.3 % of the screen

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

Using 58.3 % of the screen

Letter box

#### TV screens

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

Using 17.5 % of the screen

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

Using 23.3 % of the screen

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

Using 12.5 % of the screen

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

Using 13.3 % of the screen

Letter box
###### Square screen (1.00)

Using 10 % of the screen

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

Using 5 % of the screen

Letter box

### Compare

Compare to aspect ratio standards from:
VideoCinema projectorsCinema camerasPhoto

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Megapixel calculator
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See megapixels in different aspect ratios