FOV and triple screen calculator
The FOV calculator calculates screen angles from screen size and eye distance. It also calculates side screen angles for a triple screen setup.
What to enter
Select a screen from the saved screen list. Enter the eye distance in centimeters. For triple screens, enter the bezel width in millimeters.
What it returns
The calculator returns horizontal and vertical fields of view. For triple screens, it also returns the side screen angle and screen width across the setup.
Data and calculation
Screen dimensions come from the site's saved screen list. The angle formula is 2 * atan(width / (2 * eye_distance)). The calculation uses the same units for width and eye distance.
For triple screens, the horizontal calculation adds two bezel widths to one screen width. The combined horizontal field of view stops at 210 degrees.
Example from the saved screen list
Triple 32" 16:9 Pro Surround: screen width 697.3 mm, eye distance 62 cm, and bezel width 8 mm.
The horizontal angle for one screen is 59.8 degrees. The side screen angle is 59.8 degrees.