FOV Calculator
Convert Horizontal FOV to Vertical FOV instantly using your display aspect ratio. Perfect for Unity, Unreal Engine, FPS games, ultrawide monitors and camera configuration.
Accurate FOV Conversion
Convert horizontal field of view into vertical field of view using mathematically correct camera projection formulas.
Multiple Aspect Ratios
Test common display formats including 16:9, 21:9, 32:9, 4:3 and portrait displays.
Popular Game Presets
Quickly load commonly used FOV values from popular competitive and AAA games.
FOV Calculator
Horizontal FOV
90°
Vertical FOV
58.72°
Aspect Ratio
16:9
Decimal Ratio
1.778
Popular Game Presets
Click any preset to instantly populate the calculator.
Visual FOV Comparison
Larger Field of View values allow you to see more of the game world, while smaller values provide a more zoomed-in perspective.
60° FOV
Narrow view with higher perceived zoom. Common in cinematic cameras and slower-paced games.
90° FOV
Balanced visibility and perspective. The most commonly used FOV for PC first-person games.
120° FOV
Extremely wide viewing angle that improves peripheral vision but may introduce distortion.
What is Field of View (FOV)?
Field of View (FOV) represents the amount of the virtual world visible through the game camera. Increasing the FOV allows players to see more of the environment, while decreasing it creates a narrower and more zoomed-in perspective.
Most modern games expose the horizontal FOV, while engines such as Unity internally use vertical FOV for perspective cameras.
Horizontal vs Vertical FOV
Horizontal FOV
Measures how much of the world is visible from left to right. This value is commonly shown in PC game settings.
Vertical FOV
Measures the visible area from top to bottom and is the value commonly used by Unity's Camera component.
Recommended FOV Values
| Genre | Typical FOV | Notes |
|---|---|---|
| Competitive FPS | 90°–110° | Better peripheral awareness. |
| RPG | 75°–90° | Balanced exploration. |
| Racing | 85°–105° | Improved sense of speed. |
| Ultrawide Monitor | 100°–120° | Makes better use of wide displays. |
Unity & Unreal Engine Tips
Unity cameras use a vertical field of view, whereas many PC games expose horizontal FOV in their settings. Converting between the two values ensures the same visual experience across engines and aspect ratios.
Always test your cameras on multiple aspect ratios including 16:9, 21:9 and 32:9 to ensure gameplay, UI and cinematics remain consistent on every display.
How to Use the FOV Calculator
This calculator converts Horizontal Field of View into Vertical Field of View while accounting for your display aspect ratio. It is useful for Unity, Unreal Engine, FPS games and custom camera systems.
1. Enter Your Horizontal FOV
Input the horizontal Field of View value used by your game or camera. Most FPS games expose this value in their settings.
2. Select the Aspect Ratio
Enter the width and height of your display, such as 16:9, 21:9 or 32:9. The aspect ratio affects the resulting vertical Field of View.
3. View the Converted Vertical FOV
The calculator instantly converts the horizontal Field of View into the equivalent vertical Field of View using the correct projection formula.
4. Use Game Presets
Load common Field of View values from popular games to compare camera settings or quickly configure your own projects.
Common Use Cases
🎮 Unity Development
Convert Horizontal FOV values into Unity's Vertical FOV for Perspective Cameras.
🛠 Unreal Engine
Match camera settings between Unreal Engine and other engines or existing games.
🎯 FPS Games
Compare Field of View settings used in competitive shooters and maintain a consistent viewing experience.
🖥️ Ultrawide Monitors
Understand how wider displays affect visible area and camera projection.
📷 Camera Systems
Configure cinematic and gameplay cameras while maintaining consistent framing across different resolutions.
🧩 UI & Gameplay Testing
Verify that gameplay and user interfaces remain comfortable across multiple display formats.
Best Practices
- ✓Unity Perspective Cameras use Vertical FOV.
- ✓Many PC games expose Horizontal FOV in their settings.
- ✓Changing the aspect ratio changes the Vertical FOV while keeping the Horizontal FOV the same.
- ✓Very high FOV values increase peripheral vision but may introduce noticeable perspective distortion.
- ✓Always test your cameras on multiple aspect ratios including 16:9, 21:9 and 32:9.
Why Use This Calculator?
Field of View has a major impact on gameplay, immersion and player comfort. Matching the correct FOV across different game engines and aspect ratios helps create a consistent visual experience while reducing distortion.
Whether you're building games in Unity or Unreal Engine, configuring first-person cameras or comparing settings from popular games, this calculator provides quick and accurate FOV conversions without requiring manual trigonometric calculations.
Frequently Asked Questions
What is Field of View (FOV)?
Field of View (FOV) is the amount of the game world visible through a camera at any given time. A higher FOV lets players see more of their surroundings, while a lower FOV creates a narrower, more zoomed-in perspective.
What's the difference between Horizontal FOV and Vertical FOV?
Horizontal FOV measures the visible angle from left to right, while Vertical FOV measures the visible angle from top to bottom. Many PC games display Horizontal FOV, whereas engines like Unity commonly use Vertical FOV.
Why does aspect ratio affect FOV?
The aspect ratio changes how the camera projects the scene. The same Horizontal FOV will produce different Vertical FOV values on displays with different aspect ratios such as 16:9, 21:9 or 32:9.
How do I convert Horizontal FOV to Vertical FOV?
A mathematical projection formula using trigonometric functions converts Horizontal FOV into Vertical FOV based on the selected aspect ratio. This calculator performs the conversion automatically.
What FOV should I use for FPS games?
Many competitive FPS players use values between 90° and 110° Horizontal FOV. The ideal value depends on your monitor size, viewing distance and personal preference.
Does a higher FOV improve gameplay?
A wider FOV increases peripheral vision, making it easier to notice enemies and surroundings. However, very high values may introduce perspective distortion and make distant objects appear smaller.
What FOV does Unity use?
Unity's Camera component uses Vertical Field of View. If a game provides Horizontal FOV values, you may need to convert them before applying them in Unity.
Can I use this calculator for Unreal Engine?
Yes. The calculator is useful for Unreal Engine projects, especially when comparing camera settings or matching FOV values between different engines and games.
Does this calculator support ultrawide monitors?
Yes. You can enter any aspect ratio, including 21:9 and 32:9 ultrawide displays, allowing accurate FOV calculations for modern gaming monitors.
Can I calculate FOV for custom aspect ratios?
Absolutely. Simply enter any aspect ratio values, and the calculator will compute the corresponding Vertical FOV using the supplied Horizontal FOV.
Why do games use different default FOV values?
Different genres prioritize different viewing experiences. Competitive shooters often use wider FOV values, while racing, simulation and cinematic games may use narrower camera angles.
Who should use this FOV Calculator?
This calculator is designed for game developers, Unity and Unreal Engine developers, technical artists, level designers, FPS players, content creators and anyone configuring 3D camera systems.
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