JavaScript: Convert radians to degrees

JavaScript Math: Exercise-34 with Solution

Convert Radians to Degrees

Write a JavaScript function to convert radians to degrees.

Test Data : console.log(radians_to_degrees(0.7853981633974483));
45

Sample Solution-1:

JavaScript Code:

// Define a function named radians_to_degrees that converts radians to degrees.
function radians_to_degrees(radians)
{
  // Store the value of pi.
  var pi = Math.PI;
  // Multiply radians by 180 divided by pi to convert to degrees.
  return radians * (180/pi);
}
          
// Output the result of converting approximately 0.785 radians to degrees to the console.
console.log(radians_to_degrees(0.7853981633974483));

Output:

45

Visual Presentation:

Flowchart:

Sample Solution-2:

JavaScript Code:

// Define a function named radians_to_degrees that converts radians to degrees using an arrow function.
const radians_to_degrees = rad => (rad * 180.0) / Math.PI;
// Output the result of converting pi/2 radians to degrees to the console.
console.log(radians_to_degrees(Math.PI / 2));
// Output the result of converting approximately 0.785 radians to degrees to the console.
console.log(radians_to_degrees(0.7853981633974483));

Output:

90
45

Live Demo:

For more Practice: Solve these Related Problems:

• Write a JavaScript function that converts radians to degrees using the formula (radians * 180 / Math.PI).
• Write a JavaScript function that converts an array of radian values to degrees, handling precision issues.
• Write a JavaScript function that validates a radian input and converts it to degrees, rounding to the nearest integer.
• Write a JavaScript function that performs the conversion from radians to degrees without using Math.PI directly.

Improve this sample solution and post your code through Disqus.

Previous: Write a JavaScript function to convert an angle from degrees to radians.
Next: Write a JavaScript function for the Pythagorean theorem.