Similar function in UI for GUILayoutUtility.GetRect

I've been struggling some time changing the dialogue system for my old-school graphic adventure from GUI to UI. Especially finding a method that could do the same as:

GUILayoutUtility.GetRect(new GUIContent("some text"), guiStyle)

I use it for getting the rect width before attaching the text to the UI Text component, so I can change the position of the text in case it surpasses the screen border. However, I needed to change to UI and I can't find any method or component that does the same in UI.

Is there any possibility of obtaining that rect before attaching the text, or just using other components/methods so the text never surpasses the screen border?