Field of View Calculator

Calculate your security camera's coverage area based on lens focal length, sensor size, and installation distance.

Camera Parameters

2.8mm16mm

1/3" (4.8mm × 3.6mm)

5 ft200 ft
6 ft40 ft

Field of View Results

Horizontal FOV61.9°
Vertical FOV48.5°
Diagonal FOV73.7°
Scene Width36 feet
Scene Height27 feet
Camera Angle18° down

Lens Classification

Wide Angle

Good balance of coverage and detail

Coverage Visualization (Top View)

61.9°30 feet36 feet wideSubjectCamera

Camera View (Perspective)

Camera Angle: 18° downHeight: 10 ftPerson (5'10") at 30 feetFOV: 36 feet wide

Common Use Case Recommendations

Identify Faces at Entrance

Wide enough to see full doorway, detailed enough to identify faces

Monitor Parking Lot

Maximum coverage for large outdoor areas

Watch Hallway

Narrow field of view perfect for long corridors

Point of Sale Monitoring

Focused view for register and transaction areas

Understanding Field of View

  • • Shorter focal lengths (2.8mm) provide wider coverage but less detail at distance
  • • Longer focal lengths (8mm+) provide more detail but narrower coverage
  • • Larger sensors provide wider field of view at the same focal length
  • • Higher installation heights increase the downward viewing angle
  • • Consider combining different lens types for comprehensive coverage
  • • Use wide-angle lenses for entrances and narrow lenses for long hallways

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