How do you calculate projected distance?

How do you calculate projected distance?

For any given projector, the width of the image (W) relative to the throw distance (D) is know as the throw ratio D/W or distance over width. So for example, the most common projector throw ratio is 2.0. This means that for each foot of image width, the projector needs to be 2 feet away or D/W = 2/1 = 2.0.

How far should a projector be from a 110 inch screen?

Projection Distance

Screen or image size	Projection distance (1) Minimum to Maximum	Screw hole number (2)
80 inches (203 cm)	110 to 121 inches (281 to 306 cm)	4
100 inches (254 cm)	138 to 151 inches (351 to 383 cm)	3
120 inches (305 cm)	166 to 181 inches (422 to 461 inches)	2
150 inches (381 cm)	208 to 227 inches (529 to 577 cm)	1

What is the average throw distance for a projector?

Among all existing projectors, a throw ratio around 1.13:1 is the most common design that has the lens in the front of the projector. These designs can require distances as short as 2.5 meters to project a 100-inch screen, which is the most common throw distance setup in limited space or small apartments.

How far from house is projector?

Short throw projectors need to be between 5 and 10 feet away from the screen, depending on how large of an image you want.

What is the best distance between projector and screen?

The absolute “best” distance between the projector screen and room seating is hard to calculate. Instead, a general rule is that seats should be located a distance that is no less than double the width of the projected image, and no more than five times the width of the image (the furthest seat from the screen.)

How far away should you sit from a 120 inch screen?

With one caveat..which we will get to in a bit. If your family likes being near the center of the theater, then choose a screen size which has about 10 inches of diagonal for each foot of viewing distance. That’s about 120-inch diagonal for a 12 foot viewing distance.