Photon Flux

Calculate Photon Flux instantly with the exact formula and a worked example.

Photon Flux

Required power, W
λ, nm
Photons per second
2,515,343,595,935,205,400
N = P·λ / (h·c)Calculate Photon Flux instantly with the exact formula and a worked example.
N
2.515e+18

More about: Photon Flux

What it calculates

The “Photon Flux” calculator computes Photons per second from 2 parameters: required power, w, λ, nm.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters Required power, W = 1, λ, nm = 500 the result is 2,515,343,595,935,205,400 (N = P·λ / (h·c)).

How to use

  1. Enter required power, w and λ, nm — each field above is adjustable with a slider.
  2. Photons per second 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 Photon Flux calculated?
The Photon Flux calculator computes Photons per second from required power, w, λ, nm. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Photon Flux 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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