How to convert radians to degrees
Swift version: 5.2
Most angles in iOS are measured using radians rather than degrees, but the majority of users prefer to see degrees so you’ll need to do some conversion. The equation to convert between the two is simple enough: multiply the number by 180, then divide the result by Pi.
To make things easier, drop in this function:
func rad2deg(_ number: Double) -> Double {
return number * 180 / .pi
}You can now use rad2deg(5) to find 5 radians in degrees.
SPONSORED Would you describe yourself as knowledgeable, but struggling when you have to come up with your own code? Fernando Olivares has a new book containing iOS rules you can immediately apply to your coding habits to see dramatic improvements, while also teaching applied programming fundamentals seen in refactored code from published apps.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
Similar solutions…
- How to convert degrees to radians
- How to convert units using Unit and Measurement
- How to convert a String to an Int
- How to convert between camel case and snake case with Codable and keyEncodingStrategy
- How to convert a string to a safe format for URL slugs and filenames
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
