# De Broglie Wavelength Calculator

Formula: De Broglie Wavelength(λ) = h cE

Planck’s constant(h) = 6.626 × 1034 Js
Velocity of Light(c) = 3 × 108 m/s

Enter the unknown value as ‘x’

De Broglie Wavelength(λ): A

Energy of Photon(E): eV

x =

De Broglie Wavelength Calculator is a free online tool that displays the wavelength using the momentum of the photon. BYJU’S online De Broglie wavelength calculator tool makes the calculation faster and it displays the wavelength in a fraction of seconds.

## How to Use the De Broglie Wavelength Calculator?

The procedure to use the De Broglie wavelength calculator is as follows:

Step 1: Enter the photon energy and x for the unknown value in the input field

Step 2: Now click the button “Calculate x” to get the wavelength

Step 3: Finally, the unknown value using the De Broglie wavelength will be displayed in the output field

### What is Meant by De Broglie Wavelength?

In Physics, the De Broglie wavelength is defined as the wavelength in which the object is associated with its mass and momentum. It is noted that the object force and the De Broglie wavelength are inversely proportional to each other. This equation shows a relationship between wave nature and particle nature of a body. Mathematically, de Broglie wavelength formula can be denoted as:

λ = h/p (or) λ = h/mv

Where,

λ is the wavelength

p is the momentum of the photon

h is the Planck’s constant = 6.626 × 10 −34 J−s