[PhoenixAzul]

Sunshine:

I did it all backwards, I went US to UK, and had to convert my American GPA to a UK equivalent (and then reconvert my UK grades once I got my parchment from Glasgow to something understandable for American employers...try explaining the Scottish MA to an American employer, and why my degree is MLitt not MA), and additionally I had no A levels or anything to add to my transcript, only American high school diplomas and AP grades.

Ask your home uni to give you an explanation of grades. You can likely get this from your registrar's office. It should just be a standard form explaining how your university marks and what those marks mean to the outside world.

Doing the conversion on your own (and 3.45 sounds about right) is helpful, but it couldn't hurt to launch your explanation of grades in there as well.