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Calkulon

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A screen size calculator computes a monitor's or TV's actual width, height, and pixel density (PPI) from the diagonal measurement and aspect ratio. It helps compare displays of different sizes and resolutions.

Пошаговое руководство

  1. 1Use Pythagoras' theorem with the aspect ratio to derive width and height from diagonal
  2. 2For 16:9 aspect ratio: height = diagonal × 9 / √(16²+9²); width = height × 16/9
  3. 3PPI = √(horizontal pixels² + vertical pixels²) / diagonal inches

Решённые примеры

Ввод
27-inch 16:9 monitor · 2560×1440 resolution
Результат
23.5" × 13.2" · 109 PPI
QHD resolution at common desk size
Ввод
55-inch TV · 3840×2160 (4K)
Результат
47.9" × 27" · 80 PPI
Typical living room 4K TV

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