How to Convert Radians to Degrees Using JavaScript

To convert radians to degrees using JavaScript, you need to multiply the radians by 180 and divide by pi. Below is a function which will convert radians to degrees for you in JavaScript.

function radians_to_degrees(radians) {
  return radians * (180 / Math.PI);
}

Converting radians to degrees involves the application of a very easy formula.

While JavaScript doesn’t have a function which will convert radians to degrees for us, we can easily define a function. To convert radians to degrees, all we need to do is multiply the degrees by 180 divided by pi.

We can convert radians to degrees without the help of the math module easily in Python.

Below is a user-defined function which will convert radians to degrees for us in our Python code.

function radians_to_degrees(radians) {
  return radians * (180 / Math.PI);
}

Below are some examples of how to convert a number in radians to degrees using JavaScript.

function radians_to_degrees(radians) {
  return radians * (180 / Math.PI);
}

console.log(radians_to_degrees(0))
console.log(radians_to_degrees(Math.PI/6))
console.log(radians_to_degrees(Math.PI/3))
console.log(radians_to_degrees(Math.PI/2))

// Output:
0
29.999999999999996
59.99999999999999
90

Converting Degrees to Radians in JavaScript

If you want to go the other way, from degrees to radians, you have to define another function in JavaScript.

Luckily, the formula is just a reverse of the radians to degrees conversion formula. To convert degrees to radians, we multiply by pi and divide by 180.

Below are some examples of how to convert a number in degrees to radians using JavaScript.

function degrees_to_radians(degrees) {
  return degrees * (Math.PI / 180);
}

console.log(degrees_to_radians(0))
console.log(degrees_to_radians(30))
console.log(degrees_to_radians(60))
console.log(degrees_to_radians(90))

// Output:
0.0
0.5235987755982988
1.0471975511965976
1.5707963267948966

Hopefully this article has been useful for you to learn how to convert radians to degrees in your JavaScript code.