TV Size & Viewing
Distance Calculator

Calculate TV screen dimensions from diagonal and aspect ratio.

Compare the result with an adjustable secondary viewing-distance reference.

Your inputs stay on your device

live result

Screen diagonal

Aspect ratio width

Aspect ratio height

Viewing distance

Optional; use the same unit as diagonal.

Measurement unit

Enter and read all measurements in inches.

Enter positive diagonal and aspect-ratio values; viewing distance may be zero.

This gives physical screen geometry from your measurements; it does not recommend a model or viewing setup.

Context & Reference

How it works

For understanding a screen’s physical size before arranging a room.

calculator guide

Uses diagonal and aspect-ratio geometry to derive width and height.

Use this calculator with your own values, then review the clearly labelled result and copy it when you need it elsewhere.

Screen dimensions and a clearly labelled secondary distance reference are shown.

Calculate the width and height of a 55-inch 16:9 screen.

The distance range is a rough comfort reference, not a viewing standard or product recommendation.

This calculator runs locally in this browser. The distance range is a rough comfort reference, not a viewing standard or product recommendation.

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Continue with a closely related task, calculation, conversion, or local text tool.

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