The Security Camera Lens Calculator is a free tool that will help you in determining the surveillance camera lens size, or camera lens focal length or field of view needed based on your desired configures.
Please select the sensor type first
Calculation of object size
Please enter:
Focal length (f): mm
Object distance (D): Meters
Object width (W): Meters
  Object height (H): Meters
 
Calculation of focal length
Please enter:
Object width (W): Meters
Object distance (D): Meters
Object height (H): Meters
  Focal length (f): mm
Object height (H): m
Object distance (D): m
Object width (W): m
  Focal length (f): mm
 
 
Calculation of angle of view
Please enter:
Focal length (f): mm
Horizontal angle of view θh: °
  Vertical angle of view θv: °