What Grade Is 13 out of 20?
13 out of 20 is 65% — a D on the standard US scale, a below-average score.
- Percentage65%
- Letter gradeD
- Missed7 pts
- For an A (90%)18/20
Score breakdown for a 20-point test
| Score | Percent | Letter |
|---|---|---|
| 18/20 | 90% | A- |
| 16/20 | 80% | B- |
| 14/20 | 70% | C- |
| 13/20 | 65% | D |
How this is calculated
Divide the points earned by the points possible and multiply by 100: 13 ÷ 20 × 100 = 65%. On the common 10-point-band scale that lands in the D range — you'd have needed 18/20 to reach the A band.
Common questions
Do professors round up borderline grades?
Entirely at their discretion, and policies vary wildly: some round anything above .5, some round at .45, some never round, and some round only for students who attended office hours or showed improvement. If you're within half a point of a boundary, it is always worth a polite question — before finals week, not after grades post.
What GPA do I need for the Dean's List?
Most schools set Dean's List between 3.5 and 3.7 for the semester, with a minimum credit load (often 12+ graded credits). It's a semester GPA, not cumulative — one strong term can make the list even in a rebuilding year. Your school's exact cutoff will be published by the registrar.