# 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 time**. **Frequency **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).

**Table of Contents**

## 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

**Where,**

f = Frequency of a wave

T = Time taken by a wave to complete its cycle

**Note:**

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

### Example

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 = ?

**Solution**

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.