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.

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## 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**

- First, determine the focal length (mm).
- The focal length (mm) is calculated to be : 5.

- Next, determine the circle of confusion (mm).
- The circle of confusion (mm) is measured to be: 2.

- Next, determine the f-stop.
- The f-stop is found to be: 5.

- 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)