FOV Converter — Convert Field of View Between Any Game or Monitor
This tool converts your field of view between horizontal and vertical axes, and across any aspect ratio or resolution. Whether you’re switching from a 16:9 monitor to an ultrawide, or moving from CS2 to Apex Legends, enter your current FOV and get the mathematically correct equivalent instantly.
Convert FOV between any aspect ratio
Horizontal and vertical axis support
Game presets built in
Mathematically accurate
– CALCULATOR
FOV Converter
– Guide
How to Use This FOV Converter
Six steps to get your correct FOV on any setup.
01
Select your game preset
Click any game button at the top to pre-fill the correct FOV value and axis type for that game. The hint bar below the presets confirms what was loaded.
02
Enter your FOV value
Type your current in-game FOV if it differs from the preset default. Must be between 1° and 179°.
03
Set your source aspect ratio
The ratio of the monitor or resolution you’re currently playing on. Use Custom for non-standard ratios — enter width and height directly.
04
Set your target aspect ratio
The ratio you’re converting to. This is the setup you’re moving to — a new monitor, a different game, or a different resolution.
05
Read the result
The converted FOV appears in green. Horizontal and vertical components are broken out separately below it. Hit Copy to grab the number.
06
Check all equivalents at once
The bottom table shows mathematically equivalent H-FOV and V-FOV for every common aspect ratio simultaneously. Your source ratio is highlighted.
Why FOV Changes When You Switch Monitors
When you change aspect ratios, your vertical FOV acts as the fixed anchor — it stays constant, and your horizontal FOV adjusts automatically to fill the wider or narrower screen. This is why moving from 16:9 to an ultrawide 21:9 monitor feels like the game zoomed out: your H-FOV increased because the same V-FOV now spans a wider frame. The math is trigonometric, not linear — a 10° increase in V-FOV produces a much larger shift in H-FOV on wider ratios than on narrower ones.
Copying your FOV number directly between different aspect ratios or different games without converting it first changes your actual field of view. Targets appear at different sizes, your muscle memory for flick distances breaks, and your crosshair placement instincts need recalibration. The correct approach is always to convert from your source setup using the V-FOV as the bridge — which is exactly what this tool does automatically.
– Reference
FOV by Aspect Ratio
Horizontal FOV ranges on 16:9 unless noted. Use as a starting point, not a rule.
Game-Specific Starting Points
Default FOV settings and axis types per game.
– FAQ
Common questions
Horizontal FOV measures how wide your field of view is from left to right. Vertical FOV measures top to bottom. They are mathematically linked through your aspect ratio — change one and the other changes too. Different games report FOV using different axes: CS2 uses horizontal, Valorant and Battlefield 2042 use vertical. That’s why you can’t compare raw FOV numbers between games without first knowing which axis they’re referring to.
When your monitor’s aspect ratio changes — for example, going from a 16:9 panel to a 21:9 ultrawide — the same horizontal FOV number produces a different visual result because your vertical FOV shifts. Your eye perceives the vertical component of the view as the reference point for immersion and situational awareness. If your V-FOV changes, targets appear at different sizes and distances, which disrupts your aim calibration even if you haven’t changed any in-game setting. Always convert using V-FOV as the anchor, not H-FOV.
No. Valorant locks every player to a fixed 103° vertical FOV. You cannot change it. This is a deliberate competitive fairness decision by Riot — everyone sees the same amount of the game world regardless of aspect ratio or monitor setup. On wider monitors like 21:9, your horizontal FOV will be larger than on 16:9, but the vertical view stays constant. This tool can show you the equivalent horizontal FOV on any aspect ratio from Valorant’s locked V-FOV anchor.
– RELATED TOOL