How to convert radians to degrees
Swift version: 5.10
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.
SAVE 50% All our books and bundles are half price for Black Friday, so you can take your Swift knowledge further without spending big! Get the Swift Power Pack to build your iOS career faster, get the Swift Platform Pack to builds apps for macOS, watchOS, and beyond, or get the Swift Plus Pack to learn advanced design patterns, testing skills, and more.
Available from iOS 8.0
Similar solutions…
- How to convert degrees to radians
- How to convert a CGPoint in one UIView to another view using convert()
- How to convert units using Unit and Measurement
- How to rotate a view
- How to convert a String to an Int
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
