How long are 18 inch hair extensions? Posted on November 19, 2009July 19, 2011 by Jacky Hackett Here is proof Google does in fact make us dumber. No time now to get into why I was “Googling” 18 inch hair extensions. You May Also LikeHow Frogger Encourages My Inner RunnerPickled Eggs and BeetsHow to Win Friends and Influence PeoplePlan Your Run/Run Your PlanMoving on Up. Well, West to be Exact. Share this:PinterestTwitterFacebookTumblr