Exposure Calculator
Calculate Exposure Calculator instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Exposure Calculator
f-stop
Shutter (1/N)
ISO
EV
6.3219
More about: Exposure Calculator
What it calculates
The “Exposure Calculator” calculator computes EV from 3 parameters: f-stop, shutter (1/n), iso.
Used by photographers and videographers when setting up a shoot.
Example calculation
With parameters f-stop = 8, Shutter (1/N) = 125, ISO = 100 the result is 6.32.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.