Convert field of view between horizontal and vertical, and across aspect ratios. Free, no signup.
Enter a known FOV, then read the horizontal and vertical values for your aspect ratio.
Games measure FOV differently (some horizontal, some vertical) and it changes with aspect ratio. Converting keeps the same view when you switch games or monitors.
On 16:9, competitive FPS players often use 90-106 horizontal. Wider feels more open but shrinks distant targets.