Depth of Field Calculator
Estimate hyperfocal distance from focal length, aperture, and circle of confusion.
Inputs
Depth Of Field Calculator
Results update as you type.
Live result
Hyperfocal distance mm
10,466.67
Hyperfocal distance m
10.47
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Save scenario A, change a few inputs, then save scenario B.
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Change one or two inputs to compare a second scenario before using the number.
Need more detail?
Formula, examples, and FAQ stay tucked away until you need them.
FXFormula ExplanationThe core logic behind the numbers on this page.+
This calculator uses a transparent arithmetic formula to estimate the hyperfocal distance. The formula takes into account the focal length, aperture, and circle of confusion to provide an accurate estimate. You can adjust the editable assumptions to match your specific situation. The calculator's formula is based on the standard lens equation, which is a fundamental principle in optics.
USEHow to UseA short path from input to result.+
- Enter the requested inputs.
- Keep any editable rule or rate fields aligned with your situation.
- Review the result and notes before using the estimate.
EXExamplesReference scenarios to sanity-check your inputs.+
Adjust the defaults to match your scenario, then calculate the estimate.
FAQFAQCommon edge cases and quick clarifications.+
What is the hyperfocal distance?
The hyperfocal distance is the distance at which a lens is focused so that objects at that distance and beyond will be acceptably sharp.
How do I use this calculator?
Enter the focal length, aperture, and circle of confusion, then review the result and notes before using the estimate.
Can I change the assumptions?
Yes, editable rate and rule fields are included when the exact rule can vary by place, provider, or date.
Is this calculator accurate?
This calculator provides an estimate based on the inputs. It's essential to check the result against official or current rules when making decisions that involve money, health, or legal implications.
What is the circle of confusion?
The circle of confusion is the minimum size of the image circle that can be perceived as a point by the human eye. It's a critical factor in determining the depth of field.