What Grade Is 19 out of 30?
19 out of 30 is 63.33% — a D on the standard US scale, a below-average score.
- Percentage63.33%
- Letter gradeD
- Missed11 pts
- For an A (90%)27/30
Score breakdown for a 30-point test
| Score | Percent | Letter |
|---|---|---|
| 27/30 | 90% | A- |
| 24/30 | 80% | B- |
| 21/30 | 70% | C- |
| 19/30 | 63.33% | D |
How this is calculated
Divide the points earned by the points possible and multiply by 100: 19 ÷ 30 × 100 = 63.33%. On the common 10-point-band scale that lands in the D range — you'd have needed 27/30 to reach the A band.
Common questions
How are letter grades calculated from percentages?
Most US schools map percentages to letters in 10-point bands: 90–100 is an A range, 80–89 a B range, 70–79 a C range, 60–69 a D range, and below 60 an F. Plus/minus splits each band roughly in thirds (e.g. 90–92 = A-, 93–96 = A, 97+ = A+). Individual schools and professors can and do vary the cutoffs.
Why does my school's GPA differ from this one?
Schools differ on three things: whether A+ counts as 4.3 or 4.0, whether plus/minus grades are used at all, and whether honors/AP courses are weighted above 4.0. This calculator uses the most common unweighted convention (A+ = 4.0, minus/plus in 0.3 steps). Your registrar's number is the official one.