If you’re looking into buying a projector or trying to figure out the best way to set up your current projector, you’ve probably come across the term “throw ratio.” But what is the projector-throw ratio? The throw ratio is the distance between the projector and the screen divided by the image’s width. In other words, it’s a way of determining how big or small the image will be at a given distance.
There are a few things to remember regarding the projector throw ratio. First, a lower number means a shorter throw distance, while a higher number means a longer throw distance.
So if you want a bigger image, you’ll need to choose a projector with a higher throw ratio. Second, the ideal throw ratio for your setup will depend on the size of the screen and the desired image size.

The ideal throw ratio for a given setup will depend on a few factors, including the size of the screen and the desired image size.
If you need help determining what ratio you need, a good rule of thumb is to choose a projector with a throw ratio close to the screen’s width. So, if you have a 60-inch screen, you’ll want to look for a projector with a throw ratio between 5 and 6 (60 inches divided by 10 equals 6).
When choosing the right projector for your needs, the best way to figure out the perfect throw ratio is to consult an expert. They can help you take into account all of the factors involved in your specific setup and make sure you choose a projector that will give you the results you’re looking for.
How To Calculate Projector Throw Ratio?
To calculate the throw ratio, you will need to know the following three measurements:
- Distance from the projector to the screen
- Width of the image
- Height of the image
Once you have these measurements, you can calculate the throw ratio using this formula:
Throw ratio = Distance ÷ Width
For example, if your projector is 10 feet away from your screen and your image is 10 feet wide, your throw ratio would be 1.0 (10 ÷ 10 = 1.0).
FAQs: Frequently Asked Questions About Throw Ratio
There is no definitive answer to this question, as the ideal throw ratio will vary depending on the size of the screen and the desired image size. However, as a general rule of thumb, a lower throw ratio (e.g., 1.0) is better for small screens, while a higher throw ratio (e.g., 2.0) is better for large screens.
A short throw projector is a projector with a low throw ratio. The main benefit of a short throw projector is that it can be placed closer to the screen than a standard projector, which means you don’t need as much space for your setup. Short-throw projectors are also ideal for use in small rooms or spaces with limited wall space.
A long-throw projector is a projector with a high throw ratio. The main benefit of a long throw projector is that it can project a larger image from a shorter distance, which means you don’t need as large of a screen. Long-throw projectors are also ideal for use in large rooms or spaces with a lot of wall space.
The main disadvantage of a short-throw projector is that they typically cost more than standard or long-throw projectors. Short-throw projectors also have shorter lamp life spans and may require special screens or mounts.
The main disadvantage of a long-throw projector is that they typically have lower resolutions than standard or short-throw projectors. Long-throw projectors also have shorter lamp life spans and may require special screens or mounts.
Conclusion: Projector Throw Ratio
The projector throw ratio is important when choosing a projector, as it will determine the required distance between the projector and the screen.
A lower throw ratio is ideal for smaller rooms, while a higher throw ratio is better for larger rooms. The ideal throw ratio will also depend on the desired image size.
If you still need clarification about calculating or using the projector throw ratio, feel free to leave a comment below, and we will try to help you as soon as possible!