If you plan to study overseas, most universities will be used to processing applications from overseas students and will be able to translate your UK grades.
For those who plan to work or intern abroad, there are a couple of resources you can use to demonstrate to a potential employer the equivalency of your University of Edinburgh degree to a local qualification.
UK NARIC is a government agency providing information on academic, vocational and professional qualifications from across the world. The University uses this resource to help us assess overseas qualifications, and NARIC also advise students from the UK who want to take their qualifications overseas by linking them with local network offices in each country:
For graduates of Edinburgh who are going to the US, the Fulbright Commission publishes a useful table which shows UK grades in comparison with GPA. This can be used to aid US employers who might be looking at your transcript as part of a job or internship application.