Depth of Field (DoF)
Calculate Depth of Field (DoF) instantly with the exact formula and a worked example.
Depth of Field (DoF)
Focusmm
f-stop
Subject distancem
Circle of confusionmm
Depth of field
2.5467m
More about: Depth of Field (DoF)
What it calculates
The “Depth of Field (DoF)” calculator computes Depth of field in m from 4 parameters: focus (mm), f-stop, subject distance (m), circle of confusion (mm).
Used by photographers and videographers when setting up a shoot.
Example calculation
With parameters Focus = 50 mm, f-stop = 4, Subject distance = 5 m, Circle of confusion = 0.03 mm the result is 2.55 m.
How to use
- Enter focus, f-stop, subject distance and circle of confusion — each field above is adjustable with a slider.
- Depth of field (m) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Depth of Field (DoF) calculated?
The Depth of Field (DoF) calculator computes Depth of field (in m) from focus, f-stop, subject distance, circle of confusion. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Depth of Field (DoF) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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