# Reference Angle Calculator

Calculate Reference Angle
Angle, a (in degrees) =

°

Reference Angle =

°
Angle a is =

Reference Angle Calculator is a free online tool that displays the reference angle for the given angle and its position. BYJU’S online reference angle calculator tool makes the calculation faster and it displays the reference angle value in a fraction of seconds.

## How to Use the Reference Angle Calculator?

The procedure to use the reference angle calculator is as follows:

Step 1: Enter the angle in the input field

Step 2: Now click the button “Calculate Reference Angle” to get the result

Step 3: Finally, the reference angle for the given angle will be displayed in the output field

### What is Meant by the Reference Angle?

In mathematics, the reference angle is defined as the acute angle and it is measuring less than 90 degrees. It is always the smallest angle, and it makes the terminal side of an angle with the x-axis. The reference angle is used for the purpose of the simplification of the calculations in the trigonometric function value at different angles. It is noted that, even for the larger angles, the reference angle should be less than 90 degrees.