What is the GPA for an Upper Second Class Honours degree?

There's no single universal GPA equivalent for an Upper Second Class Honours degree. The GPA required varies significantly depending on the university and even the specific program within a university. A 2:1 (Upper Second) typically falls within a range, often between a 2.7 and a 3.5 GPA on a 4.0 scale, but this is a broad estimate. You need to consult the specific grading scale and conversion table of the university awarding the degree to know for sure.