Field Of View Calculator

Calculate Lens Millimetre Selection According To Area Size

The Field of View Calculator (or FOV) is used to help predetermine proper lens selection prior to installation. This Calculator will help with a preview to area size that is visible through the lens with entered value.


Step 1 - Select the lens format you are using.



Step 2 - Enter any 2 of the 3 other pieces of information.

D  Enter distance to object (in feet):   
W  Enter width of picture (in feet):     
H  Enter height of picture (in feet):   
L  Enter size of lens (in millimeters):  
3. Press "Calculate" to get the missing information.
(Press "Reset" to clear the form.)

illustration with camera viewing features: distance, height, focal length