Aspect Ratio Calculator illustration

Aspect Ratio Calculator

Reduces any width × height to its simplest ratio, matches it against common screen ratios, and scales a size to a new width while keeping the ratio.

Notes

  • The ratio is reduced with the greatest common divisor: 1920:1080 ÷ 120 = 16:9.
  • Common ratios: 16:9 (TV, most monitors), 4:3 (older screens), 21:9 (ultrawide), 3:2 (photos, tablets), 9:16 (phone video).

Explore the idea

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