Lens calculator

The lens calculator determines how far away to place the camera in order to capture a specific scene.

In this calculator you can enter any two variables in order to calculate the third variable.

The three variables are:


  • Height and width
  • Distance between camera and scene
  • Focal length of the lens


Enter the length values specified in the same measurement unit (meters or feet). The focal length of the lens is always specified in millimeters.

Input height in meters or feet
Input width in meters or feet
Input distance in meters or feet
Focal length
Input focal in milimeters (mm)
Fields marked with a * are mandatory.

Lens Calculator