Enter the focal length (mm), the circle of confusion (mm), and the f-stop into the Hyperfocal Distance Calculator. The calculator will evaluate and display the Hyperfocal Distance. 

Hyperfocal Distance Formula

The following formula is used to calculate the Hyperfocal Distance. 

HD = FL^2 / (CoC * F-s)

  • Where HD is the Hyperfocal Distance (mm)
  • FL is the focal length (mm) 
  • Coc is the circle of confusion (mm) 
  • F-s is the f-stop 

How to Calculate Hyperfocal Distance?

The following example problems outline how to calculate Hyperfocal Distance.

Example Problem #1

  1. First, determine the focal length (mm).
    • The focal length (mm) is calculated to be : 5.
  2. Next, determine the circle of confusion (mm). 
    • The circle of confusion (mm) is measured to be: 2.
  3. Next, determine the f-stop. 
    • The f-stop is found to be: 5.
  4. Finally, calculate the Hyperfocal Distance using the formula above: 

HD = FL^2 / (CoC * F-s)

The values given above are inserted into the equation below and the solution is calculated:

HD = 5^2 / (2 * 5) = 2.5 (mm)


Example Problem #2

The variables needed for this problem are provided below:

focal length (mm) = 6

circle of confusion (mm) = 7

f-stop = 8

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. 

HD = FL^2 / (CoC * F-s) = (mm)