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Calculate the best FOV for your monitor size, sitting distance, and game type. Get your physical field of view in degrees.
Calculate the right FOV for your monitor and seating distance.
Enter your monitor size, sitting distance, and aspect ratio. The calculator uses trigonometry to compute your physical horizontal and vertical field of view in degrees, then adds a game-type offset for competitive or immersive settings.
Inputs: Monitor diagonal (inches or cm), viewing distance, aspect ratio, and game type.
Output: Recommended FOV in degrees, horizontal and vertical, with a game-type adjustment.
Limitations: Some games (CS2, Valorant) lock FOV to the aspect ratio and ignore custom values. Game-type offsets are common starting points, not fixed recommendations.
Field of view determines how much of the game world you see at once.
Every game renders its world through a virtual camera. The FOV setting controls how wide that camera's lens is. Set it too low and you're looking through a tunnel. Set it too high and everything fish-eyes at the edges.
The correct FOV is the one that matches the physical angle your monitor occupies in your vision. If your 27-inch screen at 60cm covers about 59 degrees of your visual field, setting in-game FOV to 59 means objects appear at their true size. No distortion, no artificial zoom.
Most competitive players add 5-10 degrees on top of the calculated value. The slight distortion is worth the extra peripheral awareness in fast games like Apex or Warzone.
Games handle FOV differently. Knowing which type your game uses matters.
Horizontal FOV
Vertical FOV
More on display settings, sensitivity, and optimizing your gaming setup.
How the FOV calculation works.
Formula: HFOV = 2 × arctan(screen_width / (2 × distance)). The physical monitor width is derived from the diagonal size and aspect ratio. This is standard trigonometry, not a game-specific approximation.
Game-type offsets: FPS competitive adds a common offset for peripheral awareness. Tactical shooters (CS2, Valorant) lock FOV by aspect ratio. Sim racing uses exact physical FOV with no offset.
Last reviewed: July 2026. The physics do not change, but game FOV ranges and defaults can shift between major updates.
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