What Grade Is 72 out of 80?
72 out of 80 is 90% — an A- on the standard US scale, an excellent score.
- Percentage90%
- Letter gradeA-
- Missed8 pts
- For an A (90%)72/80
Score breakdown for a 80-point test
| Score | Percent | Letter |
|---|---|---|
| 72/80 | 90% | A- |
| 64/80 | 80% | B- |
| 56/80 | 70% | C- |
| 72/80 | 90% | A- |
How this is calculated
Divide the points earned by the points possible and multiply by 100: 72 ÷ 80 × 100 = 90%. On the common 10-point-band scale that lands in the A- range.
Common questions
What's the difference between weighted and unweighted averages?
An unweighted average treats every score equally: add them up, divide by the count. A weighted average multiplies each category by its share of the grade first — homework 20%, midterms 40%, final 40% — which is how most courses actually work. If your syllabus lists category percentages, you need the weighted version.
Can I still pass if I fail the final?
Often, yes — it depends on your current grade and the final's weight. With an 80 going in and a final worth 20%, even a 40 on the final leaves you at 72. Run your exact numbers in the calculator; 'failing the final means failing the class' is only true when the final is very heavily weighted or your cushion is thin.