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FOV Calculator

Calculate how your Field of View changes across different monitor aspect ratios. Convert between horizontal and vertical FOV for Valorant, CS2, Apex, and more.

Equivalent Horizontal FOV on 4:3
86.63°
Vertical FOV: 70.53°

Default FOV by Game

GameHFOVNote
Valorant103°Fixed, 16:9 only
CS2106.26°Fixed (4:3 = 90°)
Apex Legends110°Default (70–110 range)
Overwatch 2103°Default (80–103 range)
Fortnite80°Fixed
Call of Duty120°Default (60–120 range)

What is FOV?

FOV (Field of View) determines how much of the game world you can see on screen. A wider FOV shows more peripheral vision but makes targets appear smaller. A narrower FOV provides better target visibility but limits your awareness. Valorant uses a fixed 103° horizontal FOV at 16:9 — switching to a 4:3 resolution effectively narrows your view to ~90°, making targets appear larger.

Why does aspect ratio matter?

When you switch monitors or change resolution, your actual visible field changes even if the game's FOV setting stays the same. A 21:9 ultrawide at the same vertical FOV shows significantly more horizontal space than 16:9. This calculator helps you understand exactly what you'll see on different setups.