The grading system in the UK can create agonies for American Students. If a normally straight-A student
recieves a 70 on his/her first paper, it's difficult to accept that a 70 in UK-terms is an A or a first.
So here's a comparison to help prepare you for the grading shock!
Students with an average of 70 or higher are awarded a first-class honours degree (equivalent to an A).
Other degree categories are: an upper second (equivalent to A-/B+), a lower second (equivalent to a
B) or a third class (equivalent to a C) honours degree.
At the graduate level, students with a 70 or higher are awarded a master's degree with distinction.
Students with a 60-69 are awarded a master's degree with merit.
Source: Education UK