iOS multiline label in Interface builder

You can use numberOfLines property which defines maximum number of lines a label can have. By default, it's 1. Setting it to 0 means the label will have unlimited lines.

You can do it in code:

textLabel.numberOfLines = 5 // for example

Or in Interface Builder:

Thanks AppleVijay!

Also to call sizeToFit, like this:

label.lineBreakMode = UILineBreakModeWordWrap;
label.numberOfLines = 0;
[label sizeToFit];

The height will be automatically computed.

Hit Control+Enter to add a line in UILabel in Interface Builder/Storyboard.