Bought a new HDTV, projector, or TV set for your home theater and wondering how close your seats should be. What size TV should you get? Did you know the distance you sit from your HDTV TV or projector screen has a major effect on the quality of your viewing experience?

So, how do you determine what the correct viewing distance is and what size TV you should get?
After all, there are different distance recommendations based on screen size. How far or close should you sit? Our home theater viewing distance calculator will help you determine these two.
What Does This Calculator Do?
Our home theater viewing distance calculator will help you to calculate and determine the following:
- The recommended viewing distances depend on a given screen size. This is determined for both flat-panel TVs and projectors. This is based on both THX and SMPTE viewing angle standards)
- The recommended viewing distances depend on a given display resolution. This ranges from 480p, 720p, 1080p/1080i and 1440p.
How Does The Calculator Work?
Well, it’s quite simple really:
1. Enter Screen Size: Enter the diagonal screen size e.g 32″, 55″, 65″. Enter the number without the ‘ e.g., just enter 32, 55 or 65.
Remember, the size of a flat-screen TV is usually measured diagonally, from the top left corner down to the bottom right.
Most ED TVs typically range from small 15 inches to larger 75 or even more inches.
2. Note Sitting Distance: The calculator will then produce the ideal sitting distances for different screen resolutions.
Home Theater Viewing Distance Calculator
The following calculator will help you to determine how close you should be sitting to your screen depending on the screen resolution. This optimal distance is best for seeing all details clearly: