FOV Calculator
Calculate horizontal and vertical field of view from your screen size, aspect ratio, and viewing distance. Compare common game FOV formats instantly.
Add screen size and select the correct aspect ratio.
Measure from your eyes to the center of the screen.
See horizontal, vertical, diagonal, and converted FOV values.
Field of view is calculated from the visible screen dimension and the distance from your eyes to the display.
The calculator assumes a flat rectangular display, a centered viewing position, and a straight eye-to-screen measurement. In-game camera scaling and title-specific FOV conventions may differ.
What is field of view?
Field of view is the angular extent of the scene visible at one time, measured in degrees.
Should games use horizontal or vertical FOV?
Some games use horizontal FOV while others use vertical FOV. Always check the game setting before entering a value.
Does sitting closer increase FOV?
Yes. Moving closer makes the display occupy a larger angle in your vision, increasing the geometric FOV.
Results are estimates generated locally in your browser using standard technical formulas and public specifications. They are for informational and planning purposes only. Verify configuration, compatibility and production values against official documentation before deployment. VisionVix accepts no liability for technical decisions based on this tool's output.
This calculator provides geometric estimates for flat displays. Game engines, camera settings, bezels, curved screens, and personal comfort may affect the best practical FOV.
