Definition of Throw Distance

Throw distance is the distance required between the projector lens and the screen to display a specific size image.

There are three throw distance categories for video projectors:

  • Standard Throw (or Long Throw)
  • Short Throw
  • Ultra Short Throw

Standard Throw (Long Throw) projectors usually require 6 or more feet to project an 80-inch image.

Short Throw projectors need about 4-5 feet to project a 100-inch image.

Ultra Short Throw projectors can display a 100-inch image at a distance of about 2 feet or less.

You can use the equation to calculate how close you can place your projector:

Distance = throw ratio * image width

How close you can place your projector?