Frequency Calculator

If you want to determine the frequency of a wave, you can immediately use our frequency calculator.

In physics, the amount of cycles exerted by a wave in a second is known as frequency. In other words, it can be defined as the number of waves that move a certain point in a unit of timeFrequency is defined as the inverse of a period, whereas the period is the time taken by a wave to complete one cycle. The SI unit used for frequency is Hertz (Hz).


Formula of Frequency Calculator

To calculate the period of a wave manually, you can use the formula listed below; Or, to find it instantly, you can jump to our frequency calculator.

f = 1 / T


f = Frequency of a wave

T = Time taken by a wave to complete its cycle


To calculate relative frequency, you can use our Relative Frequency Calculator.


To determine how to calculate the frequency of a wave, let's have an example below:

Suppose a wave moving in an ideal situation, completed its one cycle in 0.25s, find out the frequency accomplished by a wave. 

Given data

T = time = 0.25s

To Find

Frequency of a wave = ?


To find out the frequency of a wave, we will use the formula listed below:

f = 1 / T

Putting values in the formula:

f = 1 / 0.25s = 4 Hz

How to use the Frequency Calculator?

The steps to use the frequency calculator are as follows:

Step 1: Enter the value of time in the first required input.

Step 2: The calculator will automatically display an answer on the screen.

Calculator use

You can use our frequency calculator for various oscillatory principles, such as mechanical vibrations, radio waves, the sound of an object, etc.