Projector Screen Size Calculator
Calculate the projected screen size from throw distance and throw ratio, or find the required distance for your desired screen size.
Throw Calculator
Enter throw ratio + distance OR desired screen size.
Throw Type
Inputs
Distance ÷ Screen Width
Projected Screen
Screen Width
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Screen Height
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Diagonal
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Area
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Throw Distance Reference
| Screen (16:9) | 0.5:1 | 1.2:1 | 1.5:1 | 2.0:1 |
|---|---|---|---|---|
| 80" | 2.9 ft | 7.0 ft | 8.7 ft | 11.6 ft |
| 100" | 3.6 ft | 8.7 ft | 10.9 ft | 14.5 ft |
| 120" | 4.4 ft | 10.5 ft | 13.1 ft | 17.4 ft |
| 150" | 5.4 ft | 13.1 ft | 16.3 ft | 21.8 ft |
Projector Setup Guide
Ultra Short Throw (0.3–0.5:1): Mount right below the screen or on a TV stand. Produces 80–120" images from just 1–2 feet away. Ideal for living rooms where ceiling mounting isn't possible.
Short Throw (0.5–1.0:1): Place 4–8 feet from the screen. Great for smaller rooms and reduces shadow interference from presenters.
Standard Throw (1.0–2.0:1): The most common type. Requires 8–16 feet for a 100" screen. Best value and most projector options in this category.
Lens shift & zoom: Many projectors have zoom (adjustable throw ratio) and lens shift (vertical/horizontal offset), giving flexibility in placement without image distortion.