Focus Distance Calculator

Calculate actual focus distance from image magnification and focal length.

Linear measurement in the specified unit.
mm
Proportional relationship between two values.
x
Horizontal measurement perpendicular to length.
mm

Results

Subject Distance:
Calculated distance.
-mm
Subject Distance:
Calculated distance.
-meters
Working Distance (approx):
Calculated distance.
-mm
Field Width Captured:
Calculated field width captured based on your inputs.
-mm
Reference: Industry Standards.