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Curved & Ultrawide Monitor FOV Calculator

Precision field of view trigonometry for 34" 21:9, 49" 32:9 (Samsung Odyssey G9 / OLED), and 57" 32:9 dual 4K curved displays.

Configured for Curved Ultrawide Display (49" 32:9 1000R Radius)
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Step 1 —Your Monitor

Choose your monitor ratio and size.

20"49"80"
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Results

H 120.0°V 51.9°
GameFOV
hFov120°
Project CARS 1/2120°
European & American Truck Simulator120°
RaceRoom Racing Experience120.0°
Richard Burns Rally0.844532rad
F1 2016-20181.00
F1 2019-20202.1
F1 2021+20
vFov52°
Assetto Corsa, Assetto Corsa Competizione51.9°
rFactor 1 & 2, GSC, GSCE, SCE, AMS (ISI Engine)52°
DiRT Rally 1/2, GRID Autosport104°
GTR20.9x
Race070.9x
EA WRC68
Triple Screen Angle119.95°

Understanding Curvature Radius (1000R vs 1500R vs 1800R)

The "R" in monitor curvature ratings stands for Radius in millimeters. A 1000R monitor forms part of a circle with a radius of 1,000mm (1.0 meter), while an 1800R monitor forms a gentler curve with a radius of 1,800mm (1.8 meters).

When seated at the center of curvature (e.g. 100cm away from a 1000R screen), every point on the display is equidistant from your eyes, eliminating edge blur and color shift.

1000R

Deep Immersion

Found on Samsung Odyssey Neo G9 (49" & 57"). Wraps tightly around your peripheral vision for maximum lateral FOV.

1500R

Balanced Curve

Popular on mid-range 34" and 32" gaming monitors. Natural viewing curve without aggressive distortion.

1800R

Gentle Curve

Found on early ultrawides and productivity screens. Subtle curve that provides wide desktop space.

The Curved Arc Correction Formula

Unlike flat screens, curved monitor width is measured along the circular arc:

θ = Width / (Radius / 10)
b = (Radius / 10) × (1 - cos(θ / 2))
c = √(2 × (Radius / 10) × b - b²)
hFOV = 2 × arctan(c / (Distance - b)) × (180 / π)

Our calculator calculates this continuous trigonometric chord in real time as you adjust the radius and distance sliders.