# How do you read throw distance?

## How do you read throw distance?

Throw Ratio = Throw Distance / Image Width Throw Ratio tells us what image size we can project from a certain distance away. For instance, a throw ratio of 1.5 indicates that for every 1 foot of image width, the throw distance must be 1.5 feet.

## How do you measure projector throw 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. 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.

What is short throw distance?

Short-throw projection generally refers to a distance between 3 to 8 feet away from projector to screen. Ultra-Short Throw: Virtually eliminates shadows and eye glare, this type of throw is seen from projectors installed on the wall, the ceiling nearer to a wall, or a table projecting downwards.

How far can a projector throw?

In reality, your projector’s throw distance can vary from model to model. What is this? But, just because the throw distance varies does not mean that there are not industry standards. In fact, the majority of projectors maintain a relatively consistent throw distance between 1.5-3.0.

### How far should I 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.

### How far away does a projector need to be for a 120-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 best throw distance for a projector?

Guide to Buying Short Throw and Ultra Short Throw Projectors

Projector Type Throw Ratio Distance From Screen
Regular Projector 1.5:1 + 7.5 feet
Short Throw Projector 0.38:1 – 1.4:1 3 feet
Ultra Short Throw Projector 0.37:1 or less 1.4 feet