Perkforge
How it works
Enter the monitor diagonal, select its aspect ratio and choose whether your game expresses FOV horizontally or vertically. The calculator works backwards from that angle to find the matching eye-to-screen distance. Nothing is uploaded and no account is required.
Useful to know
Measure from your eyes to the center of the display. The result is a geometric perspective match for a single flat screen, not a medical or ergonomic recommendation. Triple-screen setups also require each simulator’s bezel, angle and projection settings.
Private by design
Inputs, selected files and results stay inside your browser. Perkforge does not receive the content you process with this tool.