Calculate coverage width, FOV angle, or optimal focal length for any camera and lens combination.
Input key variables to estimate your coverage width, FOV angle, and optimal focal length.
mm
mm
ft
ft
⚠ Check inputs - values seem outside typical camera ranges.
FOV Diagram
HFOV = 2 × arctan( sensor_width ÷ (2 × focal_length) )
Width = 2 × distance × tan( HFOV ÷ 2 )
Focal length = sensor_width × distance ÷ desired_width
Width = 2 × distance × tan( HFOV ÷ 2 )
Focal length = sensor_width × distance ÷ desired_width
IVC Field of View Calculator - results assume a rectilinear lens and perpendicular camera-to-subject angle.
Coverage Width at 20 ft: —
HFOV Angle: —
Horizontal field of view