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Calculate ultra short-throw projector placement based on screen size, aspect ratio, throw ratio, image bottom height, and projector offset.
*Always check your projector manual for exact lens offset and placement specifications.
Use the screen size and throw ratio to estimate how far the ultra short-throw projector should sit from the screen, and use the projector offset to estimate lens height.
The throw ratio defines how far the projector should be from the screen based on image width. Lower values mean the projector can sit closer.
Offset is the vertical distance between the projector lens and the bottom of the projected image.
The cabinet height should allow the projector lens to align with the required lens height for your screen.
UST placement is estimated by multiplying the image width by the projector throw ratio. Lens height is estimated using the image bottom height and projector offset.
Throw ratio is the relationship between projection distance and image width. For example, a 0.25:1 throw ratio means the projector distance is about 25% of the image width.
Different UST projectors have different lens positions, offsets, cabinet requirements, and optical designs. Always check the official projector manual before installation.
No. This calculator is for planning and estimation. Final installation should follow the projector brand’s official placement chart or manual.
For bright rooms and laser TVs, a UST ALR screen is recommended because it helps reject overhead ambient light and improve image contrast.
© Copyright 2004-2026 SCREEN PRO® All Rights Reserved | Specifications are subject to change without notice. All Rights ReservedSite Map Designed by iwonder.cn
