13 Out of 20 Grade: Percentage, Letter Grade & GPA
13 out of 20 is 65%. That is a D (1.0 GPA) on the standard A–F scale and a D (1.0 GPA) on the plus-minus scale. It passes where the minimum is 60%, but it falls short of the 70% (C) that many courses require.
Check Your Own Score
You need 14 out of 20 (70%) for the next grade (C).
Key Takeaways
- Percentage: 13/20 = 65%
- Letter grade: D (standard), D (plus-minus), F (7-point scale)
- GPA: 1.0 (standard), 1.0 (plus-minus)
- Passing: Only where the cutoff is 60%
- Next grade needs: 14/20 (70%) for a C
What Does 13 Out of 20 Mean?
Getting 13 out of 20 means 13 correct answers and 7 wrong or missed ones. Each question on a 20-question test is worth 5%, so every mistake costs a noticeable amount. 7 questions cost you 35% of the points. In simple words, you got 13 of 20 questions right, which is about 6.5 out of every 10.
The formula is correct answers ÷ total questions × 100:
13 ÷ 20 × 100 = 65%
| Score | Percentage | Standard | Plus-minus | GPA |
|---|---|---|---|---|
| 13/20 | 65% | D | D | 1.0 / 1.0 |
You earned 65% of the points and missed 35%. Schools use different scales, so check your syllabus.
13/20 as a Fraction, Decimal, Ratio, and Equal Scores
13/20 is already in its simplest form. As a decimal, it is 0.65. As a ratio, it is 13:20, and as a percentage, it is 65%. It also equals 6.5 out of 10 and 13 out of 20. Any score with the same ratio earns the same grade:
| Equal score | Percentage | Standard | Plus-minus |
|---|---|---|---|
| 13/20 | 65% | D | D |
| 26/40 | 65% | D | D |
| 39/60 | 65% | D | D |
| 52/80 | 65% | D | D |
| 65/100 | 65% | D | D |
Is 13 Out of 20 a Good Grade?
65% is 1 point above the passing line of 60% and 1 point short of a C. Whether it counts as a pass depends on your school, so check your syllabus. That is a comfortable margin.
With 7 questions missed, you lost 35% of the points. A short, focused review of the topics behind those misses can recover several points on the next test.
Grading Chart for a 20-Question Test
| Correct | Wrong | Percentage | Standard | Plus-minus |
|---|---|---|---|---|
| 20 | 0 | 100% | A | A+ |
| 19 | 1 | 95% | A | A |
| 18 | 2 | 90% | A | A− |
| 17 | 3 | 85% | B | B |
| 16 | 4 | 80% | B | B− |
| 15 | 5 | 75% | C | C |
| 14 | 6 | 70% | C | C− |
| 13 | 7 | 65% | D | D |
| 12 | 8 | 60% | D | D |
| 11 | 9 | 55% | F | F |
Scores below 12 out of 20 are an F on both scales.
Minimum Score for Each Grade on a 20-Question Test
On the standard scale, a 20-question test needs at least 18 correct for an A, 16 for a B, 14 for a C, and 12 for a D.
| Grade | Cutoff | Points needed | Minimum correct | Your 13/20 |
|---|---|---|---|---|
| A | 90% | 18 | 18 | 5 short |
| B | 80% | 16 | 16 | 3 short |
| C | 70% | 14 | 14 | 1 short |
| D | 60% | 12 | 12 | 1 above |
How Is the Letter Grade for 13/20 Decided?
To find the letter grade, the percentage is compared with a grading scale. On the standard scale, 60% up to 70% is a D, so 65% is a D. On the plus-minus scale, 60% up to 70% is a D, so 65% is a D.
| 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 (20), then the points you earned (13). To enter a score with decimals, such as 12.75 or 13.33, tick Allow decimal points first. The calculator also shows how many points you need for the next grade, which is 14/20 (70%) for a C. Switch to the plus-minus scale to see how the letter changes. You can also check any other score with the Easy Grader calculator.
When 13/20 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 question-based test counts only as much as your teacher weights it. At a 10% weight, 65% adds about 6.5 of the 10 available points.
Extra Credit
13/20 plus 1 bonus point becomes 14/20 (70%). 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 65% to 65% 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 13 ÷ 20 is always 65%, so ask your teacher to check it.
Real Examples With 13 Out of 20
A weighted test. If this test is worth 10% of your final grade, 65% gives you about 6.5 of those 10 points. At a 20% weight, it gives about 13 of 20.
Averaging with your next test. If your next 20-question test is a perfect 20/20, the two scores average 82.5%, which is a B. If it is 10/20, they average 57.5%, which is an F.
Reaching the next grade. To reach a C you need 14/20 (70%). On a whole-number test, that means 14 correct answers.
How to Improve Your Grade
A C is 1 point away. Focus on the topic that cost you the most points and ask your teacher about any question you still do not understand.
- List the 7 missed questions and label each as a careless error, a skipped topic, or a misunderstood concept.
- Study the topic behind the most misses first, and redo those questions without notes.
- Set a target of 14/20 or higher on the next test, which is a C on the standard scale.
Frequently Asked Questions
Is 13 Out of 20 a Good Grade?
No. 13 out of 20 is 65%, a D. It is below average and leaves little room for error.
Is 13 Out of 20 Passing?
It depends on the cutoff. 65% passes at 60% but not at 70%.
What Is 13/20 as a Percentage?
13 ÷ 20 × 100 = 65%.
What GPA Is 13 Out of 20?
65% equals a 1.0 GPA on the standard A–F scale and a 1.0 GPA on the plus-minus scale.
How Many More Points Do I Need for the Next Grade?
You need 14 out of 20 (70%) for a C. That is 1 more point than you have now.
How Many Can I Miss on a 20-Question Test and Still Get A D?
You can miss 8 and still get a D on the standard scale, which needs at least 12 out of 20. Missing 9 drops you to 55%, an F.
What Grade Is 13 Out of 20 on a 7-Point Scale?
F. A 7-point scale uses cutoffs of 93% (A), 85% (B), 77% (C), and 70% (D), and 13/20 is 65%.
What Is 13/20 as a Fraction, Decimal, and Ratio?
13/20 equals 13/20, or 0.65 as a decimal, and its ratio is 13:20. As a score out of 10, it is 6.5.
Other Scores on a 20-Question 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.