If you ever wanted to set up a home cinema, we've got you covered. This projector calculator is a handy tool that determines the perfect viewing distance (that is, the distance between the screen and your amazingly comfortable couch), the ideal throw distance (the distance between the screen and the projector) and the optimal brightness. With our help, setting up your personal movie theater is just a piece of cake!
If you came here to choose a perfect size of a TV screen, make sure to head to our TV size calculator.
Your first step towards setting up a perfect home cinema is to properly calculate the viewing distance. If you're sitting too far from the screen, you will not see all the available details. On the other hand, if you're sitting too close to the screen, the whole picture might not fit in your field of view; for example, if you will be concentrating on the left part of the screen, you won't notice what's happening on the right.
To find out what is the proper viewing distance, fill in the screen properties: the resolution of your movie, the aspect ratio of the screen, and its diagonal size. These three basic values are vital for determining the optimal setup of your home cinema.
Our projector screen calculator will automatically determine the following values:
You can also open the advanced mode to get more information on recommended viewing distances:
The next step in setting up a perfect home cinema is choosing the proper projector to ensure correct brightness levels. First, you need to input the following values:
Our projector calculator estimates the brightness of the screen in fL (foot-Lamberts). You can also switch the units to cd/m² (candelas per square meter), should you choose to use SI units. The brightness levels are as follows:
The third and final part of our projector throw calculator deals with the throw distance, or, in other words, the distance between the projector and the screen. To calculate it, you will need to read the manufacturer's specifications for your projector and find a value called the throw ratio.
Essentially, the throw ratio is the proportion between the throw distance D and the width of the screen W. You can write it down as
throw ratio = D/W.
The manufacturer of each projector specifies two values: the minimum and maximum throw ratio. After you input these values into the projector calculator, you will obtain the minimum and maximum throw distance perfect for your screen dimensions. Now all you have to do is set up the home cinema according to the results you got.
There's a lot more to setting up your perfect home movie theater - perhaps you want to calculate the number of seating rows, or try to ensure that the vision of audience members in the last row is not blocked. Make sure to take a look at the website of Carlton Bale, who provides a lot of helpful tips and an elaborate calculating tool, on which this projector calculator is based.