Ceiling Mount Height Calculator

Screen Size
Throw Distance
Viewing Distance
Brightness / Lumens
DIY Screen
Ceiling Mount

Use this when planning a ceiling mount to see if the lens will align with your screen and whether you have enough drop from the ceiling.

How to use: Measure ceiling height, screen center height from the floor (usually ~1.2 m / 48 in), throw distance, and throw ratio, then click Calculate. If the drop looks too short, consider a shelf mount or a smaller image.

Ceiling Mount Height Calculator

Estimate lens height and drop from ceiling for your projector mount.

Ceiling height (Meters)

Screen center height (Meters)

Throw distance (Meters)

Throw ratio

Distance ÷ screen width (e.g. 1.2:1)

Aspect ratio

16:9 4:3 21:9

Side view

Mount height and drop will appear here.

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