Installation Tool

UST Ceiling Height Calculator

Ultra-short-throw projector — how wide a picture fits your ceiling?

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Enter one value

Picture width or ceiling height

Enter the picture width you want to see the ceiling height you need — or enter your ceiling height to see the widest picture that fits.

m
16:9 picture
m
Floor to ceiling

Ceiling height needed

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Picture width

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Picture height

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Ceiling height

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Room below the picture

The rule: ceiling height = (picture width ÷ 1.77) × 1.20. Width ÷ 1.77 is the height of a 16:9 picture; the extra 20% is the space the installation needs on top of that.

Ceiling Too Low?

  • Smaller picture: enter your ceiling height to see the widest picture that fits.
  • Other solutions: if the ceiling is limited, alternative installations may still be possible.
  • Ask us: send us your room measurements and we'll review the layout with you.

Results are a planning guide — confirm on site before installing.

Short-throw instead?

A short-throw projector hangs from the ceiling behind the shooter. Work out where its lens goes for your ceiling and picture size.

Open the projector position calculator
TrueClays — UST ceiling height calculator.