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Glossary Design & Media

Aspect ratio

Aspect ratio is the proportion of an image or screen's width to its height, written as two numbers such as 16:9.

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In more detail

1920 × 1080 simplifies to 16:9 and 4000 × 3000 to 4:3. To resize without distortion, keep the ratio: a 16:9 image 800 pixels wide must be 450 tall. Cropping changes the ratio; stretching distorts the picture.

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Aspect Ratio Resizer

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See also

  • Glossary Resolution and PPI
    Resolution is the number of pixels in an image (such as 1920 × 1080).
  • Glossary Ratio
    A ratio compares two quantities by division, written a:b, and is usually simplified by their greatest common factor.
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