90° FOV: a reference angle for comparing camera settings
At 16:9, 90° horizontal FOV gives about 59° vertical coverage. It is a useful comparison reference, not a universal game default.
A 90° horizontal camera makes a convenient reference because each edge sits 45° from the forward direction. The math is also simple: at a given forward distance, the visible width is twice that distance. This page places it next to 110° so you can see how a wider alternative changes the same range, without assuming that either number is the right setting for your game.
By TechCompare · Updated
Field of view preview
The 90° reference is on the left. A 110° alternative is on the right.
- Horizontal
- 90°
- Vertical
- 59°
- Horizontal
- 110°
- Vertical
- 78°
Drag either scene to look around. Camera movement is synced. Arrow keys work when focused, and Home resets the view.
Use the center target as the baseline
At 90°, the center target is larger than in the 110° view. If you treat its 90° image height as 100%, the 110° image is about 70% as tall. Look at that center reference before judging peripheral targets, because a wide rectilinear projection stretches the sides differently. The distance tag still reads 20 m (66 ft) in both views, which helps show that the camera has not moved.
Do not treat the reference as a prescription
An FOV number can be familiar without being a standard for every camera. A vertical setting of 90° would represent a very different view on a widescreen image. A game may also change its camera when aiming, sprinting, or changing aspect ratio. Use the horizontal setting here to compare a specific geometric change, then check whether the game applies the same convention to the mode you are testing.
Camera references: horizontal and vertical conversion and view size at a distance. The worked examples use the visualizer’s own camera math.
How this is calculated
For h = 90°, tan(h / 2) is 1, so the visible width at 20 m (66 ft) forward is 40 m (131 ft). With a 16:9 viewport, the vertical angle is approximately 59°. Keep 90° horizontal fixed and switch to 32:9, and vertical coverage drops to about 31°. This is the tool’s fixed horizontal behavior, so a wider image shape does not automatically add new horizontal directions.
Verdict
Use 90° as a clear starting reference if you want an easy-to-read comparison. Its value is that you know exactly what the angle means and can keep one side fixed while testing another. If you are matching a game, the actual menu convention matters more than whether the number happens to be 90.
More FOV scenarios
Frequently asked questions
Is 90° horizontal the same as 90° vertical?
Does 90° show a quarter of everything around the player?
Related tools
FOV Visualizer
Compare field of view settings in an interactive scene to see target size and peripheral visibility change.
Use tool ➜Aspect Ratio Visualizer
Visually compare width differences between 16:9, 21:9, and 32:9 monitors.
Use tool ➜TV Viewing Visualizer
Find the ideal TV or monitor viewing distance with an interactive room layout.
Use tool ➜FPS Visualizer
Visualize the impact of different FPS settings on your game experience.
Use tool ➜