Home Theater Calculator

  • Welcome to the Home Theater Calculator. Use this page to determine the appropriate viewing distance for your Home Theater.
  • To use the Home Theater Calculator simply Enter Dimensions in the User Input box. Values are updated immediately.
  • Visual Acuity Viewing Distance is the distance at which pixels become noticable with 20/20 vision.
  • THX recommends a 36 degree or larger side-to-side viewing angle and requires at least 26 degrees.

User Input
Unit System:
Vertical Resolution:
Screen Diagonal:

Screen Dimensions
Screen Diagonal:  
Screen Width:
Screen Height:
Vertical Resolution:
Horizontal Resolution:
Number of Pixels:
Pixel Width:
Pixel Height:

Suggested View Distances
THX Max Allowable Viewing Distance:
THX Max Recommended Viewing Distance:
Visual Acuity Viewing Distance (20/20 vision):