As you travel internationally, you will realize that many different countries have different types of standard outlets.
Most high end hotels will offer different types of outlets for you as you travel, but not all.
After a long international flight, it sucks pretty bad when you get to the hotel and realize you can’t charge your devices.
Well cheapflights.co.uk put together this handy chart that letters the different types of outlets, and shows which countries use outlets that correspond to those letters.
Never be unprepared again: