Camera FOV Calculator

Calculate camera field of view based on focal length and sensor size.

Camera Settings

Focal Length (mm)

Sensor Size

Angle of View

Diagonal FoV63.5°

Horizontal54.4°

Vertical37.8°

This calculation assumes the lens is focused at infinity. Close-up focal lengths may differ slightly due to lens breathing.

Overview

Field of view (FOV) determines how much of a scene a camera captures. It depends on focal length and sensor size. Wide-angle lenses have larger FOV; telephoto lenses have narrower FOV.

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Pro Tips

Full-frame sensors are 36×24mm; APS-C is about 24×16mm.
50mm on full-frame approximates human eye FOV (~46°).
Crop factor affects effective focal length (APS-C: 1.5-1.6×).
Horizontal, vertical, and diagonal FOV all differ.

Fun Facts

"Human binocular FOV is about 200° horizontally."
"Fisheye lenses can achieve 180° or more FOV."
"Standard lens FOV: 35mm=63°, 50mm=46°, 85mm=28°."
"Smartphone cameras typically have 70-80° FOV."

Formula: FOV = 2 × arctan(Sensor Size / (2 × Focal Length))

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