Projector Throw Distance Calculator

Understanding Projector Throw Distance

Throw distance is the space between the projector lens and the screen. It directly determines how large the projected image will be. Every projector has a "throw ratio" — the ratio of throw distance to screen width. A projector with a 2.0 throw ratio needs to be placed 10 feet away to create a 5-foot-wide image.

Standard throw projectors (ratio 1.5-2.5) are the most common and affordable. They work well in dedicated rooms where you can mount the projector 10-15 feet from the screen. Short throw projectors (ratio 0.4-1.0) can produce a large image from just a few feet away, making them ideal for smaller rooms. Ultra-short throw models sit just inches from the wall or screen, perfect for living rooms where ceiling mounting isn't practical.

For the best home theater experience, aim for a screen size between 100" and 120" diagonal. Pair your projector with proper audio using our Amplifier Power Calculator and use our Screen Size Calculator to get exact dimensions for your chosen aspect ratio.