# Wavelength Calculator

The wavelength calculator can assist you in determining the relationship between frequency and wavelength. Continue reading if you are here to learn how to calculate frequency of a wave or look for the wavelength formula.

## Main properties of waves

There are three main properties of a wave: its velocity, wavelength and frequency.

**Wave velocity (v)** is the measure of how fast does a wave propagate in a given medium. Its unit is meter per second. Check the speed calculator for more informations about speed and velocity.

**Wavelength (λ)** is the distance over which the shape of wave repeats. It depends on the medium a wave travels through. It is measured in meters.

**Frequency (f)** of a wave refers to how many times (per a given time period) do the particles of a medium vibrate when the wave is passing through it. The unit of frequency is Hertz, or 1/second.

## Wavelength formula

The relationship between wavelength and frequency is described by this simple equation:

`λ = v/f`

Remember about proper units! If in trouble, you can always use the speed conversion.

## How to calculate wavelength

It's easy! Just use our wavelength calculator in the following way:

- Determine the frequency of the wave. For example,
`f = 10 MHz`

. This frequency belongs to the radio waves spectrum. - Choose the velocity of the wave. As a default, our calculator uses a value of
`299 792 458 m/s`

- the speed of light propagating in the air. - Substitute these values into the wavelength equation
`λ = v/f`

. - Calculate the result - in this example, wavelength will be equal to
`29.98 m`

. - You can also use this tool as a frequency calculator. Simply type in the values of velocity and wavelength to obtain the result.

## Typical wave speeds

- Light in air or vacuum:
`299 792 458 m/s`

- Light in water:
`224 901 000 m/s`

- Sound in air:
`343.2 m/s`

- Sound in water (20°C):
`1481 m/s`