Photons per second
Calculate Photons per second instantly with the exact formula and a worked example. Free online calculator — no signup.
Photons per second
Power, W
λ, nm
Photons per second
2,515,343,595,935,205,400
N
2.515e+18
More about: Photons per second
What it calculates
The “Photons per second” calculator computes Photons per second from 2 parameters: power, w, λ, nm.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters Power, W = 1, λ, nm = 500 the result is 2,515,343,595,935,205,400 (N = P·λ / (h·c)).
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.