Rainbow Six Siege FOV Calculator
Convert Vertical FOV
To Real Horizontal View
Rainbow Six Siege’s FOV slider runs 60 to 90, and that number is vertical field of view — not horizontal like most shooters. It’s why Siege values look so low next to CS2 or Apex. Siege’s maximum of 90 is actually 121.3° horizontally on a 16:9 monitor. Use this calculator to see what you’re really rendering.
60–90
Slider
Range
Vertical
FOV
Axis
Hor+
Ultrawide
Scaling
– CALCULATOR
Rainbow Six Siege FOV Calculator
Enter your in-game vertical FOV, choose your monitor’s aspect ratio, and the calculator returns your true horizontal and diagonal field of view — plus a recommended range for how you play.
60 — default90 — max
Options → Display → Field of View. This value is vertical FOV.
Enter your vertical FOV, pick your aspect ratio and playstyle, then calculate.
– Quick Explainer
Why Siege Uses Vertical FOV
Rainbow Six Siege exposes field of view as a slider from 60 to 90 under Options → Display, and that number is vertical FOV — the angle from the top of your screen to the bottom. Most shooters quote horizontal instead, which is why Siege values look so much lower than everything else.
They aren’t lower. They’re measured differently. Siege’s maximum of 90 vertical works out to 121.3° horizontally on a 16:9 monitor — wider than Apex Legends allows at its own maximum. The default of 60 vertical is 91.5° horizontal, which is roughly the classic “90 FOV” most shooters ship with.
Because vertical is the fixed axis, Siege behaves as a Hor+ game: your vertical view never changes, and horizontal expands to fill a wider screen. An ultrawide player at 84 sees noticeably more to the sides than a 16:9 player at 84, with identical coverage above and below. That’s the number the calculator gives you.
– How to Use
Four Steps to Your FOV
01
Enter Your FOV
The value from Options → Display, between 60 and 90. It’s vertical FOV.
02
Pick Your Ratio
16:9, ultrawide or anything else. This decides your real horizontal view.
03
Set Playstyle
Entry, anchor, long angles or ranked. Each shifts the suggested band.
04
Calculate & Copy
Read your true horizontal FOV, then copy the full breakdown.
– Reference Data
Siege Vertical to Horizontal FOV Table
| Vertical | 4:3 | 16:10 | 16:9 | 21:9 | 32:9 |
|---|---|---|---|---|---|
| 60 | 75.2° | 85.5° | 91.5° | 106.8° | 128.1° |
| 70 | 86.1° | 96.5° | 102.4° | 117.1° | 136.2° |
| 75 | 91.3° | 101.7° | 107.5° | 121.6° | 139.7° |
| 80 | 96.4° | 106.6° | 112.3° | 125.9° | 142.9° |
| 84 | 100.4° | 110.5° | 116.0° | 129.1° | 145.3° |
| 90 | 106.3° | 116.0° | 121.3° | 133.6° | 148.6° |
Note how little the horizontal figure moves at the top of the slider. Going from 84 to 90 vertical adds only about 5° horizontally on 16:9, but it costs target size across the whole screen — which is why plenty of strong players stop short of the maximum.
– Myth Check
No, Siege 90 Is Not “Low FOV”
The most common mistake new Siege players make is copying an FOV number straight from another game, or assuming Siege is stingy because the slider stops at 90.
Siege 90 vertical = 121.3° horizontal on 16:9. That is wider than Apex Legends allows at its maximum of 110, and far wider than Overwatch 2’s ceiling of 103. Siege is one of the most generous FOV sliders in competitive FPS, not one of the tightest.
Siege 60 vertical = 91.5° horizontal. The default is roughly the classic “90 FOV” most shooters have shipped with for decades. It feels cramped to modern eyes, which is why almost nobody stays on it.
Never copy a number across games. A 103 in Call of Duty is horizontal; a 103 in Siege isn’t even possible. Convert to a common axis first — that’s what the calculator above is for.
– Recommended Settings
Best Siege FOV by Playstyle
These are editorial recommendations, not official settings. The overwhelming majority of professional players run 90, but plenty of strong ranked players deliberately sit at 75–85 for larger heads at range.
70–80
New Players · Long Angles
102–112° horizontal on 16:9. Heads stay large enough to spot down long sightlines while you learn map geometry and head-level pre-aim.
75–85
Casual · Support / Anchor
107–116° horizontal. Anchoring a site means holding one or two angles for a long time, so target clarity matters more than sweeping peripheral coverage.
80–90
Ranked
112–121° horizontal. Roamers arrive from angles you didn’t plan for, and clearing more of a room per peek is worth the small loss in target size.
85–90
Competitive · Entry Fragger
116–121° horizontal. Entering a site means reading the whole room in one swing. Most pros run 90, though some report a mild fisheye effect at the maximum.
– Trade-offs
Is Higher FOV Always Better?
No. Siege is a game of pixel-thin head angles, and the trade is sharper here than in almost any other shooter.
What higher FOV gives you
More of a room cleared per peek. Roamers spotted earlier in your periphery. Less tunnel vision during fast rotations and rappels. A better read on multiple angles when you swing into a site.
What it costs you
Heads shrink to very few pixels down long sightlines. Some players report a mild fisheye effect at 90. Slightly more geometry rendered per frame. Motion discomfort for a minority of players.
FOV does not change hitboxes, recoil or damage. It changes what you can see and how large it appears, nothing about the underlying simulation. It also has only a modest effect on frame rate — shadows, texture quality and render scaling all cost far more. If you’re chasing FPS, start there.
– Game Comparison
Siege vs Other Shooters
| Game | Range | Axis | Max H on 16:9 |
|---|---|---|---|
| Rainbow Six Siege | 60–90 | Vertical | 121.3° |
| Call of Duty | 60–120 | Horizontal @ 16:9 | 120° |
| Apex Legends | 70–110 | Horizontal | 110° |
| Escape from Tarkov | 50–75 | Vertical | 107.5° |
| Valorant | Fixed 103 | Vertical (locked) | Fixed 103 H · Horizontal @ 16:9 · 103° |
| Marvel Rivals | Fixed | Third-person | No slider |
The axis column is the one that matters. Siege and Tarkov both use vertical FOV; Call of Duty and Apex use horizontal. Comparing raw numbers across those rows is meaningless — convert to a common axis first with our FOV converter.
– Informational
Finding Your Ideal Siege FOV
How to change it
Open Options, go to the Display tab, and scroll to Field of View. Siege lets you change it mid-match, which is unusually convenient — you can test a value during a live round rather than only in a custom game. Console players had this locked to 60 for years; a slider arrived in Year 7, so there’s parity now.
A method that works
Start at 84. It sits inside the useful band for nearly every playstyle and gives you a neutral point to move from. Play ten or so rounds, then adjust by 3–5 at a time. If roamers keep appearing beside you with no warning, go up. If you keep losing long-range head duels you feel you should win, come down.
Give every change several matches. Any FOV shift feels wrong for the first hour regardless of whether it’s right for you, because your sense of how far a head sits from centre screen has to recalibrate. Judging after one round tells you about novelty, not quality.
Factor in your display
A 24-inch monitor at arm’s length and a 32-inch panel two feet from your face present completely different images at identical settings. Larger and closer means the screen edges already occupy your peripheral vision, and pushing FOV higher sends information into a zone your eyes aren’t actually reading. On a laptop display the opposite problem applies — heads at 90 become a handful of pixels.
Common mistakes
Jumping straight to 90 because it’s the maximum. Copying a pro’s number without matching their monitor or sitting distance. Changing FOV every few matches so muscle memory never settles. And the big one — carrying a number over from another game without converting the axis first. For the underlying maths, see horizontal vs vertical FOV explained.
– FAQ
Common questions about Siege FOV.
The vertical system, aspect ratios, console parity and performance.
Yes. The slider under Options → Display sets vertical field of view, the angle from the top of your screen to the bottom. Horizontal FOV is then derived from your aspect ratio. That’s why Siege’s 60–90 range looks low next to games that quote horizontal figures.
Most ranked players land between 80 and 90 vertical. The overwhelming majority of professionals run the maximum of 90, though 75, 80, 82 and 85 are all popular. Players who hold long angles often deliberately sit lower, since heads stay larger on screen. There’s no single correct value.
84 vertical is 116.0° horizontal on a 16:9 monitor. On 21:9 the same setting renders 129.1°, and on 32:9 it reaches 145.3°. Your vertical view stays at 84° in every case — only the horizontal spread changes.
Yes. Console players were locked to 60 for years while PC had the full 60–90 range, and Ubisoft initially said technical limitations prevented a console slider. That changed in Year 7, when a console FOV slider was added. There’s parity between platforms now.
It changes your horizontal FOV, not your vertical. Because Siege fixes the vertical axis, a wider monitor adds view to the left and right rather than cropping the top and bottom. At 84 vertical you get 116° horizontal on 16:9 and 129.1° on 21:9 — a genuine ultrawide advantage.
Slightly. A wider view puts more geometry inside the frustum, so the engine draws more each frame. The cost is small compared with render scaling, shadow quality or texture settings. If you’re chasing frames, change those first and leave FOV where it’s comfortable.
Not mechanically. Hitboxes, recoil patterns and damage are unchanged. What does change is how many pixels a head occupies and how far a target sits from centre screen, so your aim will feel different after a change even though nothing in the simulation moved. Give it several matches to recalibrate.
For some players, yes. Most pros run it, but 90 renders 121.3° horizontally on 16:9, which shrinks heads noticeably at range and produces a mild fisheye effect that some players find distracting. If your long-range head duels have got worse since raising it, that’s the trade showing up. Try 84 instead.
Yes, but never by copying the number. Convert both games to the same axis first. Siege is vertical, so take your value straight across to another vertical-FOV game like Tarkov, or convert it to horizontal before comparing with Call of Duty or Apex. The calculator above handles the conversion.
Not the maximum straight away. 70–80 is a sensible starting band while you’re learning head-level pre-aim and map geometry, since targets stay larger and easier to identify. Move up once your crosshair placement is consistent. Almost nobody stays on the default 60 — it’s genuinely restrictive.
Often. A field of view too narrow for your screen size and sitting distance is a common discomfort trigger, and raising it usually helps. For some players the opposite is true and the fisheye at 90 causes problems instead. Adjust in small steps, and try reducing motion blur separately — it’s a frequent contributor.
– RELATED TOOL