Projector Throw Distance Calculator
A Projector Throw Distance Calculator is a tool used to determine the optimal distance between a projector and the screen or wall it’s projecting onto.
Let's say you have a projector with a throw ratio of 1.5:1 and you want to project an image that's 100 inches wide. The throw distance calculator determine that you need to place the projector approximately 150 inches (or 12.5 feet) away from the screen.
Projector Throw Distance Chart
Screen Width (inches) | Throw Ratio | Throw Distance (inches) |
---|---|---|
40 | 0.5:1 | 20 |
60 | 1.2:1 | 72 |
80 | 1.5:1 | 120 |
90 | 1.7:1 | 153 |
100 | 1.8:1 | 180 |
110 | 1.9:1 | 209 |
120 | 2.0:1 | 240 |
130 | 2.1:1 | 273 |
150 | 2.5:1 | 375 |
180 | 3.0:1 | 540 |
200 | 3.3:1 | 660 |
240 | 4.0:1 | 960 |
300 | 5.0:1 | 1500 |
Brand | Model | Throw Ratio Range | Recommended Screen Size | Throw Distance Range |
---|---|---|---|---|
Epson | Home Cinema 5050UB | 1.35:1 – 2.84:1 | 50″ – 300″ | 5.7′ – 59.1′ |
BenQ | HT3550 | 1.13:1 – 1.47:1 | 60″ – 200″ | 5.2′ – 24.6′ |
Optoma | UHD50X | 1.21:1 – 1.59:1 | 40″ – 300″ | 4.0′ – 26.6′ |
Sony | VPL-VW295ES | 1.38:1 – 2.83:1 | 60″ – 300″ | 7.0′ – 58.3′ |
JVC | DLA-NX7 | 1.40:1 – 2.80:1 | 60″ – 200″ | 7.0′ – 46.6′ |
XGIMI | HORIZON Pro | 1.2:1 – 1.5:1 | 80″ – 200″ | 8.0′ – 15.0′ |
Dangbei | Mars Pro | 1.27:1 | 40″ – 200″ | 5.0′ – 18.4′ |
ViewSonic | PX747-4K | 1.47:1 – 1.76:1 | 100″ – 300″ | 8.2′ – 15.7′ |
LG | HU85LA | 0.19:1 – 0.25:1 | 90″ – 120″ | 2.0′ – 4.0′ |
Samsung | The Freestyle | 1.0:1 | 30″ – 100″ | 3.0′ – 10.0′ |
NEC | NP-ME401W | 1.5:1 – 2.0:1 | 60″ – 120″ | 6.0′ – 12.0′ |
Acer | H6517ABD | 1.47:1 – 1.62:1 | 80″ – 120″ | 6.5′ – 10.5′ |
Projector throw distance Formula
The formula for calculating projector throw distance is:
Throw Distance = Screen Width * Throw Ratio
Where:
- Throw Distance is in inches or feet
- Screen Width is the width of the projected image in inches or feet
- Throw Ratio is a characteristic of the projector lens (typically found in the projector’s specifications)
To calculate the throw distance for a projector with a throw ratio of 1.8:1 projecting onto a 100-inch wide screen:
Throw Distance = 100 inches * 1.8 = 180 inches (or 15 feet)
This means you would need to position the projector 15 feet away from the screen to achieve the desired 100-inch wide image.
How to calculate projector throw distance?
To calculate projector throw distance, you need to know two key pieces of information: the desired screen width and the projector’s throw ratio.
Suppose you want to set up a home theater with a 120-inch wide screen, and you’re considering a projector with a throw ratio of 2.0:1.
Using our formula:
Throw Distance = Screen Width Throw Ratio = 120 inches 2.0 = 240 inches (or 20 feet)
This calculation tells you that you’ll need to position the projector 20 feet away from your screen to achieve the desired 120-inch wide image. It’s important to consider this distance when planning your room layout and choosing a projector that suits your space.
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