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)

## FAQ

**What is a wavelength?**

A wavelength is the 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.

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