64 Out of 80 Grade: Percentage, Letter Grade & GPA
64 out of 80 is 80%. That is a B (3.0 GPA) on the standard A–F scale and a B− (2.7 GPA) on the plus-minus scale. It is a passing grade and is above average.
Check Your Own Score
You need 72 out of 80 (90%) for the next grade (A).
Key Takeaways
- Percentage: 64/80 = 80%
- Letter grade: B (standard), B− (plus-minus), C (7-point scale)
- GPA: 3.0 (standard), 2.7 (plus-minus)
- Passing: Yes, at both the 60% and 70% cutoffs
- Next grade needs: 72/80 (90%) for an A
What Does 64 Out of 80 Mean?
Getting 64 out of 80 means you earned 64 points and lost 16. Each point on an 80-point test is worth 1.25%. Losing 16 points cost you 20% of the total. In simple words, you earned 64 of 80 points, which is about 8 out of every 10.
The formula is points earned ÷ total points × 100:
64 ÷ 80 × 100 = 80%
| Score | Percentage | Standard | Plus-minus | GPA |
|---|---|---|---|---|
| 64/80 | 80% | B | B− | 3.0 / 2.7 |
You earned 80% of the points and missed 20%. Schools use different scales, so check your syllabus.
64/80 as a Fraction, Decimal, Ratio, and Equal Scores
64/80 simplifies to 4/5. As a decimal, it is 0.8. As a ratio, it is 4:5, and as a percentage, it is 80%. It also equals 8 out of 10 and 16 out of 20. Any score with the same ratio earns the same grade:
| Equal score | Percentage | Standard | Plus-minus |
|---|---|---|---|
| 64/80 | 80% | B | B− |
| 8/10 | 80% | B | B− |
| 16/20 | 80% | B | B− |
| 20/25 | 80% | B | B− |
| 24/30 | 80% | B | B− |
| 32/40 | 80% | B | B− |
Is 64 Out of 80 a Good Grade?
64 out of 80 is a good result. You earned 80%, which is a B on the standard scale and a B− on the plus-minus scale. You are 0 points above the B cutoff and 8 points short of an A.
A B often reflects a solid base with a few gaps. Fixing the mistakes that came from one topic can move you toward an A faster than reviewing everything.
Grading Chart for an 80-Point Test
| Earned | Lost | Percentage | Standard | Plus-minus |
|---|---|---|---|---|
| 68 | 12 | 85% | B | B |
| 67 | 13 | 83.75% | B | B |
| 66 | 14 | 82.5% | B | B− |
| 65 | 15 | 81.25% | B | B− |
| 64 | 16 | 80% | B | B− |
| 63 | 17 | 78.75% | C | C+ |
| 62 | 18 | 77.5% | C | C+ |
| 61 | 19 | 76.25% | C | C |
| 60 | 20 | 75% | C | C |
Scores below 48 out of 80 are an F on both scales.
Minimum Score for Each Grade on an 80-Point Test
On the standard scale, an 80-point test needs at least 72 points for an A, 64 for a B, 56 for a C, and 48 for a D.
| Grade | Cutoff | Points needed | Minimum points | Your 64/80 |
|---|---|---|---|---|
| A | 90% | 72 | 72 | 8 short |
| B | 80% | 64 | 64 | Exactly at cutoff |
| C | 70% | 56 | 56 | 8 above |
| D | 60% | 48 | 48 | 16 above |
How Is the Letter Grade for 64/80 Decided?
The percentage is matched to a grading scale. On the standard scale, 80% up to 90% is a B, so 80% is a B. On the plus-minus scale, 80% up to 83% is a B−, so 80% is a B−.
| Percentage | Standard | Plus-minus | GPA (standard) |
|---|---|---|---|
| 90–100% | A | A+, A, A− | 4.0 |
| 80–89% | B | B+, B, B− | 3.0 |
| 70–79% | C | C+, C, C− | 2.0 |
| 60–69% | D | D | 1.0 |
| Below 60% | F | F | 0.0 |
How to Use the Calculator Above
Enter the total points (80), then the points you earned (64). To enter a score with decimals, such as 63.75 or 64.33, tick Allow decimal points first. The calculator also shows how many points you need for the next grade, which is 72/80 (90%) for an A. Switch to the plus-minus scale to see how the letter changes. You can also check any other score with the Easy Grader percentage calculator.
When 64/80 May Not Match Your Final Grade
The calculator gives the grade for this one score. These six things can change how it counts toward your final grade:
Weighted Categories
A point-based test counts only as much as your teacher weights it. At a 10% weight, 80% adds about 8 of the 10 available points.
Extra Credit
64/80 plus 1 bonus point becomes 65/80 (81.25%). Some teachers allow totals above 100%.
Dropped Scores
Some courses drop your lowest quiz or test. If yours does, a weaker score may not count at all.
Curved Tests
Curved tests adjust everyone’s score. Use the curved score, not the raw one, when you calculate your percentage.
Rounding Rules
Rounding 80% to 80% keeps you in the same grade range on both scales, so rounding does not change this grade.
Pass/Fail Courses
Pass/fail and mastery courses care about the cutoff, not the letter. The cutoff is usually 60% or 70%.
If your recorded score ever looks wrong, remember that 64 ÷ 80 is always 80%, so ask your teacher to check it.
Real Examples With 64 Out of 80
A weighted test. If this test is worth 10% of your final grade, 80% gives you about 8 of those 10 points. At a 20% weight, it gives about 16 of 20.
Averaging with your next test. If your next 80-point test is a perfect 80/80, the two scores average 90%, which is an A. If it is 40/80, they average 65%, which is a D.
Reaching the next grade. To reach an A you need 72/80 (90%). On a whole-number test, that means 72 points.
How to Improve Your Grade
You are 8 points from an A. Sort the points you lost into careless mistakes and knowledge gaps, and start with the careless ones because they are the fastest to fix.
- Review the points you lost and label each as careless, skipped, or conceptual.
- Fix the careless errors first and study the topic behind the conceptual ones.
- Aim for 72/80 on the next test, which is an A on the standard scale.
Frequently Asked Questions
Is 64 Out of 80 a Good Grade?
Yes. 64 out of 80 is 80%, a B. It is above average and shows solid understanding.
Is 64 Out of 80 Passing?
Yes. 80% clears both common passing marks, 60% and 70%.
What Is 64/80 as a Percentage?
64 ÷ 80 × 100 = 80%.
What GPA Is 64 Out of 80?
80% equals a 3.0 GPA on the standard A–F scale and a 2.7 GPA on the plus-minus scale.
How Many More Points Do I Need for the Next Grade?
You need 72 out of 80 (90%) for an A. That is 8 more points than you have now.
How Many Points Can I Lose on an 80-Point Test and Still Get A B?
You can lose 16 points and still get a B on the standard scale, which needs at least 64 out of 80. Losing 17 points drops you to 78.75%, a C.
What Grade Is 64 Out of 80 on a 7-Point Scale?
C. A 7-point scale uses cutoffs of 93% (A), 85% (B), 77% (C), and 70% (D), and 64/80 is 80%.
What Is 64/80 as a Fraction, Decimal, and Ratio?
64/80 equals 4/5, or 0.8 as a decimal, and its ratio is 4:5. As a score out of 10, it is 8.
Other Scores on an 80-Point Test
Written by
Muhammad Umer Shuaib
Author & Grading Tools Developer, Easy Grader
Muhammad Umer Shuaib builds and maintains the grading calculators on Easy Grader. Before a page goes live, he checks every percentage, letter grade, and GPA conversion against the standard US A–F and plus-minus grading scales, and tests the calculator on real score examples. He writes these guides so students, teachers, and parents can get a clear, accurate answer without doing the math or guessing which scale applies.