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.
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16:9 picture
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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