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Screen Size Calculator

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Calculates screen dimensions (width, height, and area) based on the diagonal size and aspect ratio.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Diagonal Screen Size (inches) and Aspect Ratio in the units shown.

Step 2

Read Screen Width (inches), Screen Height (inches), and Screen Area (square inches) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

65-inch 16:9 TV

Diagonal Screen Size (inches): 65; Aspect Ratio: 16:9

Screen Width (inches): 56.65240991 inches; Screen Height (inches): 31.86698058 inches; Screen Area (square inches): 1,805.341246 square inches

55-inch 16:9 TV

Diagonal Screen Size (inches): 55; Aspect Ratio: 16:9

Screen Width (inches): 47.93665454 inches; Screen Height (inches): 26.96436818 inches; Screen Area (square inches): 1,292.581602 square inches

27-inch 16:9 Monitor

Diagonal Screen Size (inches): 27; Aspect Ratio: 16:9

Screen Width (inches): 23.5325395 inches; Screen Height (inches): 13.23705347 inches; Screen Area (square inches): 311.5014837 square inches

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