FOV calculator / flat, curved & triples

Get the FOV your rig actually covers.

Enter your screen and seating measurements to get physical horizontal and vertical spans, a ±10 mm distance band, and the matching game convention when verified.

FOV result / your measurements Private in your browser

01 Rig setup Measured input

Layout

Your units

Screen size from

Diagonal (inches)

Aspect ratio

Eye-to-screen-center distance

Curved panel

Horizontal resolution (optional)

Vertical resolution

02 Instrument readout Physical angles

Enter the dimensions you can measure to get physical spans and a distance-sensitivity band.

Game source pendingCalculate the current rig to map this dataset record.

03 / Check your result

Your measurement chain

Input27 in diagonal / 24 in distance

Panel width597.7 mm active

AnglesH --.- / V --.-

H = 2 × atan(W ÷ (2 × D))

Submit the rig to see how your measured dimensions produce the reported angles.

Supported games

The calculator converts your physical geometry into each game's own FOV convention — every conversion is sourced and dated inside the tool. Open it prefilled with the 27-inch example measurements (swap in your own) for:

iRacing FOV calculator — horizontal convention; sets "Field of View (built-in Field of View Calculator)"
Assetto Corsa FOV calculator — vertical convention; sets "FOV (Onboard Settings app / View Settings)"
Assetto Corsa Competizione (ACC) FOV calculator — vertical convention; sets "FOV (View Settings, per camera; plus FOV offset)"
Automobilista 2 (AMS2) FOV calculator — horizontal convention; sets "Field of View"
rFactor 2 (rF2) FOV calculator — vertical convention; sets "Vertical FOV"
Le Mans Ultimate (LMU) FOV calculator — vertical convention; sets "Vertical FOV"
RaceRoom Racing Experience (RaceRoom) FOV calculator — physical-geometry calibration; sets "Field of View / Advanced FOV (physical-geometry calibration)"
BeamNG.drive FOV calculator — vertical convention; sets "Field of View (per camera mode; Driver camera)"

Also documented, but not converted — these games' FOV sliders are unitless or undocumented, so any number would be invented. The calculator still gives you your physical spans:

EA Sports F1 (22–25) — Field of View (Camera Customisation, per camera)
EA Sports WRC — Camera FOV (Head Cam / External Cameras)
DiRT Rally 2.0 — Field of View (camera settings)
Forza Motorsport (2023) — Camera FOV (Bumper/Hood/Cockpit/Driver/Chase Near/Chase Far)
Gran Turismo 7

Run a community site, league, or guide? Embed this calculator — no analytics, no cookies, no external requests.