Calculate the width of a String From http://stackoverflow.com/questions/1324379/how-to-calculate-the-width-of-a-text-string-of-a-specific-font-and-font-size

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UIFont *font = [UIFont fontWithName:@"Helvetica" size:30];
NSDictionary *userAttributes = @{NSFontAttributeName: font,
                                 NSForegroundColorAttributeName: [UIColor blackColor]};
NSString *text = @"hello";
...
const CGSize textSize = [text sizeWithAttributes: userAttributes];