The Swedish grading scale does not lend itself to US grade equivalents. Väl godkänd is rarely obtained and is only awarded 10% of the time. Failing grades are not reported on transcripts, but students may retake a final exam until they pass. Because a translation between Swedish and US grades is lacking, it is up to the home institution to award credit as they see fit. One method is to compare the Swedish grade descriptions with those of the ECTS, and then ECTS with US.
VG - Väl godkänd (Passed with distinction)
G - Godkänd (Passed)
U - Underkänd (Fail)