This wavelength calculator determines the distance between two wave peaks when you know the frequency and the wave velocity or speed. Below the form you can discover more on this subject and check an example calculation.

Complete any of the two fields to discover the third value!

Wave velocity:

How does this wavelength calculator work?

This is a tool you can use to estimate the distance from one wave peak to another when you already know the frequency and the wave velocity or speed

You can also use the wavelength calculator to find out the frequency of a wave as long as you know its speed and wavelength. Therefore you can input data for any two of the three components and in different measurement units, in order to discover the third value. The answer from the tool will be given in the S.I measurement unit for that variable.

Wavelength (m) = Wave velocity (m/s) / Frequency (Hz)

Wavelength represents the distance between two consecutive frequency wave peaks and is usually used to describe the electromagnetic spectrum. The measurement units for it available in the form are microns; mm; cm; m; km; inches and feet.

The other elements in the formula:

  • Frequency represents the number of occurrences of an event in a certain period of time. In this case we are talking about peaks of the wave. The unit from the formula is Hz but you can also input KHz; Mhz and GHz and the calculator will do the transformations.

Frequency (Hz) = Wave velocity (m/s) / Wavelength (m)

  • Wave velocity represents the speed of the wave. In the form you can customize it with the desired value and by choosing from m/s, km/s and miles/s as measurement units.

Wave velocity (m/s) =Wavelength (m) * Frequency (Hz)

Example calculation

Let’s take for instance the case of a wave with a frequency of 56 Hz going through a material at a speed of 168 m/s. The wavelength result is 3 m.

Most common velocities:

Light in vacuum (air) = 300,000 km/s

Light in water = 225,000 km/s

Sound in air = 340 m/s

Sound in water = 1,600 m/s

Wave velocity (m/s)  = Frequency (Hz) x Wavelength (m)

26 Mar, 2015