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Exposure Calculator

Calculate Exposure Calculator instantly with the exact formula and a worked example.

Exposure Calculator

f-stop
Shutter speed (1/N)
ISO
EV
6.3219
Calculate Exposure Calculator instantly with the exact formula and a worked example.

More about: Exposure Calculator

What it calculates

The “Exposure Calculator” calculator computes EV from 3 parameters: f-stop, shutter speed (1/n), iso.

Used by photographers and videographers when setting up a shoot.

Example calculation

With parameters f-stop = 8, Shutter speed (1/N) = 125, ISO = 100 the result is 6.32.

How to use

  1. Enter f-stop, shutter speed (1/n) and iso — each field above is adjustable with a slider.
  2. EV is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Exposure Calculator calculated?
The Exposure Calculator calculator computes EV from f-stop, shutter speed (1/n), iso. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Exposure Calculator 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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