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FOV Calculator — Best Field of View for Your Screen

Quick answer

This calculator finds your ideal FOV from screen size and distance: at 80 cm from a 27″ 16:9 monitor the screen subtends about 41° of your view.

  • Free and instant.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

Angle subtended by a 27″ 16:9 monitor by distance

Viewing distance (cm)Angle (degrees)
6053°
7046°
8041°
9037°
10033°

How FOV Calculator Works

Conversions between horizontal, vertical, and aspect-ratio-based FOV

Convert field of view values between different measurement types used by different games, accounting for your monitor's aspect ratio.

  1. 1

    Step 1

    Enter your current FOV value

  2. 2

    Step 2

    Select the FOV type (horizontal or vertical)

  3. 3

    Step 3

    Choose your aspect ratio

  4. 4

    Step 4

    View converted FOV values for different systems

Use Cases

Matching FOV settings across different games

Optimizing for your monitor and seating distance

Reducing motion sickness from wrong FOV

Transferring settings to new monitors

Tips

  • 1

    Higher FOV sees more but targets appear smaller

  • 2

    90-110 horizontal FOV is common for PC gaming

  • 3

    Console games often use lower FOV defaults

  • 4

    Too high FOV can cause fisheye distortion

Common Mistakes

  • Not knowing if game uses vertical or horizontal FOV

  • Setting FOV too high causing distortion

  • Not adjusting FOV when changing monitors

  • Copying pro settings without understanding why

FAQs

What is FOV in games?

FOV (field of view) is the horizontal angle the virtual scene shows. A larger FOV widens the view and changes the sense of speed and scale.

How do I calculate the right FOV for my monitor?

It derives from screen width and viewing distance: FOV = 2 × atan(width ÷ 2 ÷ distance). A 27″ screen at 80 cm gives about 41°.

Why does a very high FOV look distorted on one screen?

High values are designed for multi-monitor wraps; on a single screen they create fisheye stretching at the edges because the angle exceeds what the display actually covers.

Is horizontal FOV different from vertical?

Yes — some games expose vertical FOV, others horizontal; converting between them depends on the aspect ratio (e.g. 16:9).
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