Enter the total energy of a photon into the calculator to determine the wavelength.

## Energy to Wavelength Formula

The following equation can be used to convert energy into a wavelength for photons.

w = h *c / E
• Where w is the wavelength
• h is the Planck constant (6.6261*10^-34)
• c is the speed of light (299,792,458 m/s)
• E is the energy

To calculate wavelength from energy, divide the product of the Planck constant and speed of light by the energy.

## Energy To Wavelength Definition

Energy to wavelength is defined as the conversion of the total energy contained within a photon into the wavelength.

## Energy to Wavelength Example

How to calculate energy to wavelength?

1. First, determine the speed of light.

This will be constant at the value of (299,792,458 m/s)

2. Next, determine the plank constant.

This will be constant at (6.6261*10^-34)

3. Next, determine the total energy.

Calculate the total energy of the photon.

4. Finally, calculate the wavelength.

Convert the energy to wavelength using the equation above.

## FAQ

What is a wavelength?

A wavelength is a distance a photon travels as it completes one full-wave or frequency.

What is the planck constant?

The Planck constant is a universal constant of energy*time that describes energy waves.