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Display geometry tool

Display PPI and Viewing-Distance Calculator

Calculate display dimensions, pixel density, pixel pitch, field of view, pixels per degree, and practical viewing-distance ranges for gaming monitors and TVs.

Local calculationTransparent formulasShareable results
A gaming monitor and television measured from a seated viewing position with subtle display-geometry overlays
Compare screen size, resolution, viewing distance, field of view, and pixel density.
Screen geometry

Calculate the display you will actually see

Enter the physical diagonal, resolution, and eye-to-screen distance. The tool calculates image dimensions, PPI, pixel pitch, field of view, and pixels per degree without uploading anything.

Ready.
Calculated result

Geometry and perceived detail

Pixel density
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—
Pixel pitch
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Physical size of one pixel
Image size
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Width × height
Field of view
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Horizontal × vertical
Pixels per degree
—
Resolution divided by visible angle
Planning range
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—
Same physical screen

1080p, 1440p, and 4K comparison

The table holds diagonal and distance constant so only resolution changes.

ResolutionPPIPixel pitchPPDInterpretation
Portable result

Copy the report

Calculating…
Method and limits

What the numbers mean

  • PPI describes physical pixel density; it does not include viewing distance.
  • PPD combines resolution and field of view, making distance part of the calculation.
  • Planning ranges use horizontal field-of-view bands, not a universal comfort rule.
  • Visual acuity, panel subpixel layout, scaling, anti-aliasing, posture, and preference can change the practical result.
  • The calculator assumes a flat screen viewed straight on and is not medical guidance.
Use the result

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