Camera FOV Calculator - Lens Field of View Calculator Free

How to Use the FOV Calculator

1. Select sensor size — 1/3", 1/2.7", 1/2", or 1/1.8"
2. Enter focal length — lens focal length in mm (2.8 to 12mm typical)
3. Enter distance — distance to target in meters
4. Get instant results — horizontal FOV, vertical FOV, and coverage area

Perfect for security system designers, CCTV installers, and surveillance professionals planning camera placement and lens selection.

Features

• Common sensor sizes — 1/3", 1/2.7", 1/2.5", 1/1.8"
• Focal length range — 2.0mm to 50mm
• Coverage area — width and height at target distance
• Visual reference — shows coverage pattern
• Lens recommendations — suggests lens for desired coverage