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FOV calculator

Calculate the best FOV for your monitor size, sitting distance, and game type. Get your physical field of view in degrees.

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in

Common sizes: 24", 27", 32", 34" ultrawide.

cm

Distance from your eyes to the screen.

Aspect ratio

Game type

Apex, CoD, Overwatch 2. Wider view can increase peripheral awareness.

Recommended gaming FOV

90°

horizontal field of view

Physical FOV (1:1 accuracy)

53°

Your screen physically covers 53° of your vision. The recommended value adds 37° for better peripheral awareness in fps competitive games.

Vertical FOV

31.3°

Panel width

59.8 cm

Use the game’s supported range as a starting point.

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What this calculator does

Calculate the right FOV for your monitor and seating distance.

Physically correct FOV depends on screen size and viewing distance. For a 27-inch monitor at 60 cm, the mathematically correct horizontal FOV is about 53 degrees, but most players prefer 90-110 for competitive games. Enter your setup above to get your exact physical FOV plus a game-type offset.

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 and ignore custom values. Game-type offsets are common starting points, not fixed recommendations.

Recommended FOV by setup

Physical and competitive FOV values for common monitor sizes and distances.

MonitorDistancePhysical HFOVCompetitive range
24-inch 16:950 cm56°90-105
24-inch 16:960 cm48°90-105
27-inch 16:950 cm62°90-110
27-inch 16:960 cm53°90-110
27-inch 16:970 cm46°90-110
32-inch 16:960 cm61°95-110
34-inch 21:960 cm67°95-110

Physical HFOV is the mathematically correct angle for your screen and distance. Competitive range is what most players use in adjustable-FOV games like Apex, CoD, and Overwatch 2.

How FOV works in gaming

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. A 27-inch monitor at 60 cm covers about 53 degrees horizontally. Setting in-game FOV to that value means objects appear at their true size.

Competitive players go well above the physical value. Most Apex, CoD, and Overwatch 2 players use 90-110 horizontal, which is 37 to 57 degrees more than the 53 degrees of that 27-inch setup. The calculator's FPS competitive preset adds 37 degrees, the low end of that range. The edge distortion is the price of extra peripheral awareness in fast games like Apex or Warzone.

Horizontal vs. vertical FOV

Games handle FOV differently. Knowing which type your game uses matters.

Horizontal FOV

Most common in modern games.

  • Measures angle from left edge to right edge.
  • Used by Apex Legends, Call of Duty, Overwatch 2.
  • Changes with aspect ratio (ultrawide = wider view).
  • Use the calculator's primary result directly.

Vertical FOV

Fixed regardless of aspect ratio.

  • Measures angle from top edge to bottom edge.
  • Used by CS2, fixed at 73.74 degrees.
  • Stays the same on 16:9 and 21:9 monitors.
  • Use the calculator's "Vertical FOV" value.

Related guides

More on display settings, sensitivity, and optimizing your gaming setup.

Methodology and sources

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 37 degrees to your physical FOV, which takes a 27-inch monitor at 60 cm from 53 to 90 degrees, the low end of the 90-110 range most players use. General / RPG adds 20. Tactical shooters (CS2, Valorant) lock FOV. Sim racing uses exact physical FOV with no offset.

Last reviewed: October 2026. The physics do not change, but game FOV ranges and defaults can shift between major updates.

FOV questions

Field of view, gaming performance, and getting the right settings.

For a 27-inch monitor at 60 cm distance, the physically correct horizontal FOV is about 53 degrees, but most competitive players prefer 90-110. Use the calculator above for your exact setup. Its FPS competitive preset adds 37 degrees to your physical FOV, which puts that 27-inch setup at 90.
90-110 horizontal FOV is the most common range for competitive FPS games. Apex Legends defaults to 90-110, Call of Duty uses 80-120, and Overwatch 2 uses 103. Tactical shooters like CS2 and Valorant lock FOV at 106 and 103 horizontal (16:9) and cannot be changed.
Horizontal FOV = 2 × arctan(screen width ÷ (2 × viewing distance)). For a 27-inch 16:9 monitor at 60 cm, screen width is 59.8 cm, giving HFOV ≈ 53 degrees. Most games add an offset so players can see more peripheral area.
Apex pros typically use 90-110 FOV. Call of Duty pros range from 95-120. CS2 and Valorant pros cannot change FOV (locked at 106.26 and 103 horizontal on 16:9). Overwatch 2 pros mostly use the default 103.
Yes, for awareness. Higher FOV shows more of the game world but makes targets appear smaller. Most competitive players sit well above their physical FOV, usually at 90-110 horizontal. Going above 120 often causes edge distortion.
CS2 uses a fixed vertical FOV of 73.74 degrees. Horizontal FOV is 106.26 degrees at 16:9, about 120.5 degrees at 21:9, and about 121.7 degrees on a 3440×1440 ultrawide. You cannot change FOV in CS2. Use this calculator to optimize your viewing distance for that fixed angle.
Horizontal FOV measures left-to-right screen angle; vertical FOV measures top-to-bottom. Apex, CoD, and Overwatch 2 let you set horizontal FOV. Valorant fixes horizontal FOV at 103 degrees. CS2 fixes vertical FOV at 73.74 degrees, so its horizontal FOV gets wider on ultrawide monitors. Fortnite has no FOV slider. A 90 horizontal FOV on 16:9 equals roughly 59 vertical FOV.
Yes, slightly. Going from 90 to 110 FOV typically costs 3-8% FPS because the game renders a wider scene. On modern GPUs this is usually negligible. Lower FOV can improve frame rates in GPU-bound scenarios.
When in-game FOV does not match your screen size and viewing distance, your brain detects a visual mismatch. Setting FOV to your calculated physical value (about 53 degrees for a 27-inch monitor at 60 cm) eliminates that conflict.

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