var PT: CGFloat = 0; override func viewDidLoad() { super.viewDidLoad() setPoints(); } func setPoints() { let screenBounds = UIScreen.main.bounds let screenScale = UIScreen.main.scale let screenSize = CGSize(width: screenBounds.size.width * screenScale, height: screenBounds.size.height * screenScale) let nativeBounds = UIScreen.main.nativeBounds let nativeScale = UIScreen.main.nativeScale let pxScreenWidth:CGFloat = nativeBounds.width; let ptScreenWidth:CGFloat = screenBounds.width; PT = pxScreenWidth/ptScreenWidth/nativeScale; } How to use: let label: UILabel = UILabel(frame: CGRect(x: 15 * PT, y: 10 * PT, width: self.view.frame.width - 30 * PT, height: self.view.frame.height - 20 * PT))