Degrees of horizontal FOV from focal length and sensor format.
Sensor width preset
Horizontal field of view: 39.60°
Assumes a rectilinear lens; physical sensor crop may vary by body.
Camera Horizontal FOV Calculator helps you degrees of horizontal fov from focal length and sensor format. It is commonly used by professionals, students, general users for field of view, FOV, focal length.
Rectilinear estimate
Uses the standard pinhole model: horizontal FOV = 2 × atan(sensorWidth / (2 × focalLength)), converted to degrees.
Presets
Horizontal sensor widths: Full Frame 36 mm, APS-C 24 mm, Micro 4/3 17.3 mm (typical stills/video references; real chips vary).
Privacy
Runs locally in your browser.