FOV Calculator: Find the Right Field of View for Your Screen

The calculator has two modes. Use Monitor setup to find the geometrically correct FOV for your screen, which is what sim racers and flight simmers need. Use Game converter when you already have a FOV number and want to know what it means on a different axis or aspect ratio.

Field of view is the angle of the game world shown on your screen at one time. A higher FOV squeezes more of the scene into the same display, which helps you spot movement at the edges but makes distant objects look smaller. A lower FOV magnifies the center of the image and feels more cinematic, or claustrophobic if it’s pushed too far.

There’s also a physical field of view: the angle your monitor actually fills in your vision from where you sit. When the in-game FOV matches that physical angle, objects appear at true scale and distances look right. That match is the whole point of an FOV calculator for sim racing, and it’s why a 27-inch 16:9 monitor viewed from 60 cm calls for roughly 53° horizontal, far below what most shooters use.

Games don’t agree on how to measure FOV, and that causes most of the confusion. Some quote the horizontal angle, from the left edge of the screen to the right. Others quote the vertical angle, from top to bottom. On a 16:9 monitor, 90° vertical works out to about 121° horizontal, so the same number can describe two very different views.

For the aspect ratio, divide width by height: 16:9 is 1.778 and a 3440×1440 ultrawide is 2.389.

How popular games measure FOV

When you’re unsure, check your game’s settings menu or community wiki before copying a number from another title.

Most modern games use Hor+ scaling: they lock the vertical FOV and let the horizontal view grow with screen width. That’s why switching from 16:9 to an ultrawide shows more of the world at the sides without cutting anything from the top or bottom. CS2 works this way, which is why its locked 90° at 4:3 becomes 106.26° on a 16:9 screen.

Some games lock the horizontal FOV instead, so a wider screen trims the top and bottom of the image rather than adding to the sides. On those titles an ultrawide gives you a more zoomed-in view, not extra peripheral vision. The converter’s aspect ratio table shows how a locked vertical FOV plays out on every common screen shape.

In racing sims, the correct FOV is the one that matches your real viewing angle. With the right FOV, braking points, apexes and closing speeds become easier to judge, because movement on screen matches what your eyes expect.

Distance matters more than screen size. Moving from 60 cm to 50 cm away from a 27-inch 16:9 monitor raises the correct FOV from 53° to almost 62°, so measure from your eyes in your normal driving position.

Triple screen FOV and side angles

With three identical screens angled toward you, the total horizontal FOV is roughly three times that of one screen, plus a little extra for the bezels. Each side monitor should be turned inward by about the same angle as one screen’s FOV, so every panel faces your eyes squarely. The calculator shows that side angle. Check whether your sim wants the per-screen or total value, since many ask for the per-screen FOV with triple-screen mode turned on.

Curved monitors

Curved screens wrap their edges toward you, which slightly widens the angle they cover at the same size and distance. Pick your monitor’s curve rating, such as 1000R or 1800R, and the calculator accounts for it. A lower number means a tighter curve and a bigger effect.

For shooters there’s no single best FOV, only a trade-off between awareness and precision. Use these ranges as a starting point, measured as horizontal FOV on a 16:9 screen.

Sitting far from a large TV favors lower values, around 60° to 75°, because a very wide view on a distant screen shrinks targets and can cause motion discomfort. At a desk, 90° to 103° suits most players, and several competitive shooters cap their sliders near 103°. Values above 110° show a lot of the world but visibly stretch the edges of the image.

If you feel queasy or get headaches during long sessions, your FOV may be too narrow for how close you sit. Raising it a few degrees often helps.