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TV Distance — Free Online Tool

TV Distance solves Optimal distance ≈ 1.5 × diagonal size — a common viewing-distance guideline; THX and SMPTE recommend somewhat different multipliers depending on the target field of view. Enter your known values and the calculator solves for the rest instantly. It runs entirely in your browser, so nothing you enter is uploaded to a server. Free to use, with no signup and no watermark.

How to use TV Distance

1. Enter your known values in the fields.
2. The result updates instantly as you type.
3. Copy or note down the result.

Frequently asked questions

What formula does TV Distance use?

Optimal distance ≈ 1.5 × diagonal size — a common viewing-distance guideline; THX and SMPTE recommend somewhat different multipliers depending on the target field of view.

Does it work on mobile?

Yes. The layout adapts to phones and tablets as well as desktop.

Is my data private?

Yes. Everything runs in your browser and nothing is uploaded.

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