FOV Calculator 👁️

What is Field of View (FOV)?

Field of View (FOV) represents the extent of the observable game world that is seen on the display at any given moment. It is typically measured in degrees. A higher FOV allows you to see more of your peripherals, which is crucial in fast-paced competitive shooters. A lower FOV makes objects in the center of the screen appear larger, making targets easier to spot at a distance.

How to Find Your Optimal FOV

True geometric FOV is calculated based on how much physical space your monitor occupies in your real-life vision. Playing at this exact "optimal" FOV essentially turns your monitor into a perfect window into the game world, creating 1:1 realism and reducing motion sickness.

• Monitor Size: Larger monitors take up more of your real-world vision, allowing for a naturally higher in-game FOV without distortion.
• Viewing Distance: The closer you sit to your monitor, the more of your vision it occupies. Sitting closer means you can comfortably use a wider FOV.
• Aspect Ratio: Ultrawide monitors physically expand your horizontal vision, meaning their optimal horizontal FOV is significantly higher than a standard 16:9 monitor.

Horizontal vs Vertical FOV in Games

Different game engines calculate and define FOV in different ways. Understanding the difference is crucial when trying to match sensitivity and feel across different games.

• Horizontal FOV (HFOV): Used by games like CS2, Apex Legends, and Overwatch. It defines how wide the view is from the left edge of the screen to the right.
• Vertical FOV (VFOV): Used by games like Valorant, Rainbow Six Siege, and most Unreal Engine games. It defines how tall the view is from the top to the bottom edge.

Because these are linked by your monitor's aspect ratio, an FOV of 90 in a VFOV game is drastically wider than an FOV of 90 in an HFOV game. Use the converter above to ensure your settings remain consistent across titles.