What is field of view (FOV) in gaming?

Field of View (FOV) in gaming is the extent of the game world visible on screen at any moment, measured in degrees. Higher FOV shows more of the scene; lower FOV zooms in. Most competitive FPS players use 90–110° horizontal FOV.

How do I convert FOV between aspect ratios?

Use the formula: vFOV = 2×arctan(tan(hFOV/2) ÷ aspectRatio), then solve for the new hFOV at the target aspect ratio. Our calculator does this instantly — enter your FOV, source ratio, and target ratio.

Does changing aspect ratio change FOV?

Yes. Changing aspect ratio changes horizontal FOV while keeping vertical FOV constant. Going from 4:3 to 16:9, a 90° horizontal FOV becomes approximately 106.26°. This is why accurate FOV conversion is critical for competitive players switching setups.

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Q: What is the best FOV for FPS games?

Most competitive FPS players use 90–110° horizontal FOV. CS2 pros use 4:3 stretched (90°) or ~106° on 16:9. Valorant is locked at 103° vertical. Apex players prefer 100–110°. The best FOV depends on your game, monitor size, and playstyle.

Convert field of view between any aspect ratio with mathematically accurate results. Dedicated calculators for every major FPS game.

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General Tool

FOV Calculator

Convert horizontal FOV between any aspect ratio. Use the game-specific pages below for tailored recommendations.

Input

Game i

Current Horizontal FOV i

90°

40°← narrow · wide →150°

Enter a value between 1° and 179°

Source Ratio

Target Ratio

Results

Converted Horizontal FOV

90°

Horizontal Degrees

Vertical FOV

59.26°

Converted

Source vFOV

59.26°

Original

16:9 — Modern widescreen standard. Used by the majority of competitive players.

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Calculators

Each page has a pre-configured calculator, pro settings, competitive guides, and game-specific FAQs.

Valorant FOV Calculator

Call of Duty: Warzone

Warzone FOV Calculator

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Fortnite

Fortnite FOV Calculator

Overwatch 2 FOV Calculator

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Rainbow Six Siege

R6 Siege FOV Calculator

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Exact Math

Arctangent-based conversion — the same formula used in game engines and esports coaching tools.

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Recalculates on every keystroke. No submit button, no page reload — pure instant output.

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8 Dedicated Pages

Every major FPS has its own calculator page with pre-configured settings and expert guidance.

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All Aspect Ratios

4:3, 16:9, 16:10, 21:9, 32:9 — including ultrawide and super-ultrawide monitors.

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H + V Output

See both horizontal and vertical FOV simultaneously — critical for Valorant and Overwatch 2.

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Drag the slider to see how field of view affects enemy visibility. Red = visible. Faded = outside your cone.

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FAQ

Common questions about FOV.

A FOV calculator converts your field of view setting between different aspect ratios using arctangent math. It ensures your viewing angle stays consistent when you change monitors, switch resolutions, or move between games. Enter your current FOV and aspect ratio, select your target ratio, and get the exact equivalent value instantly.

Field of View is the angular extent of the game world visible on screen, measured in degrees. Higher FOV shows more of the scene and increases peripheral awareness. Lower FOV zooms in, making distant targets appear larger and easier to hit. Most competitive FPS players use 90–110° horizontal FOV as their sweet spot.

The math uses arctangent: first convert your hFOV to vFOV using vFOV = 2×arctan(tan(hFOV/2) ÷ aspectRatio), then solve for the new hFOV at the target ratio. The vertical FOV stays constant across different aspect ratios in most game engines. Our calculator handles all of this automatically — just enter your values.

Yes. Switching from 4:3 to 16:9 increases horizontal FOV significantly — a 90° hFOV on 4:3 becomes approximately 106.26° on 16:9. This is why CS2 players using 4:3 see a narrower view than 16:9 players running the same FOV number. Accurate conversion is essential for consistency across setups.

The competitive consensus is 90–110° horizontal FOV. CS2 pros typically use 4:3 stretched (90°) or ~106° on 16:9. Valorant is locked at 103° vertical. Apex players prefer 100–110°. Warzone players often push to 110–115° for open-map awareness. Visit the dedicated game calculator pages for game-specific guidance.

Guides

FOV deep dives.

🔭

BeginnerJan 2026

What Is FOV in Gaming? Complete Beginner Guide

Horizontal vs. vertical FOV, why it matters for competitive play, and how to find your ideal setting.

Read article →

🏆

Pro SettingsFeb 2026

Best FOV Settings for FPS Games in 2026

Game-by-game breakdown of optimal FOV for CS2, Valorant, Apex, Warzone, Fortnite and more.

Read article →

FOV Calculator

Game-Specific FOVCalculators

Exact Math

Real-Time Results

8 Dedicated Pages

All Aspect Ratios

H + V Output

One-Click Copy

See FOV in action.

Common questions about FOV.

FOV deep dives.

What Is FOV in Gaming? Complete Beginner Guide

Best FOV Settings for FPS Games in 2026

Game-Specific FOV
Calculators