Projector Throw Calculator
Placement made easy. Find the perfect spot for your projector.
Projector Specs (Throw Ratio)
Check your projector manual. Standard zoom lens usually 1.5 - 1.8.
Placement Distance Range
0 - 0 feet
(0.00 - 0.00 meters)
Screen Dimensions
Width:0" (0 ft)
Calculated Height:0.0"
Projector Placement Guide
Setting up a projector requires precise measurements. The Throw Ratio is the most important specification to understand.
The Golden Formula
Throw Distance = Screen Width × Throw RatioTypes of Projectors
- Long Throw (Ratio 2.0+): Installed in the back of large halls or cinemas.
- Standard Throw (Ratio 1.3 - 2.0): Most home theater projectors. Placed behind the seating area or on the ceiling.
- Short Throw (Ratio 0.4 - 1.0): Placed on a coffee table or ceiling closer to the screen.
- Ultra Short Throw (Ratio < 0.4): Sits directly below the screen on a TV stand (Laser TVs).
FAQ
What is Throw Ratio?
Throw ratio is the relation between the distance from the screen and the width of the screen. Formula: Ratio = Distance / Width.
What is the difference between Short Throw and Long Throw?
Short throw projectors (Ratio < 1.0) can create large images from very close distances. Standard throw (Ratio 1.5 - 2.0) projectors need to be placed at the back of the room.
How do I calculate screen width from diagonal?
For a standard 16:9 HDTV screen, the width is approximately 0.87 times the diagonal measurement.
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