What Grade Is 10 out of 15? (10/15)
10 out of 15 (10/15) is 66.67%, which rounds to 67%: a D on the 10 point and plus and minus scales and an F on the 7 point scale. That is 5 wrong answers and 1.0 GPA points on the 4.0 scale. A gradebook that rounds to 67% first would make it a D+ on the plus and minus scale.
- Percentage
- 66.67%
- rounds to 67%
- 10 point letter
- D
- D with +/-, F on 7 point
- Wrong
- 5
- of 15 questions
- 4.0 GPA
- 1.0
- for a D
One more right, one fewer: 11/15 and 9/15
One more right makes it 11 out of 15, a 73.33%: a C on the 10 point scale. One fewer is 9 out of 15, a 60%, the same D (D- with pluses and minuses). Each question is worth 6.67 percentage points.
The next letter up with pluses and minuses is a C at 11/15 (73.33%), 1 more right answer away. That is also a C on the 10 point scale.
Right answers needed for each letter out of 15
| Letter | Percent | Right | From 10/15 |
|---|---|---|---|
| A | 93 to 100 | 14 or more | 4 more right |
| B | 83 to under 87 | 13 or more | 3 more right |
| B- | 80 to under 83 | 12 or more | 2 more right |
| C | 73 to under 77 | 11 or more | 1 more right |
| D | 63 to under 67 | 10 or more | your score |
| D- | 60 to under 63 | 9 or more | 1 fewer |
| F | below 60 | 8 or fewer | 2 fewer |
Plus and minus scale; the 10 point letter is the plain letter. A-, B+, C+, C- and D+ cannot happen with whole scores out of 15.
66.67% on other test lengths
10/15 is exactly the same grade as 8 out of 12, 20 out of 30 and 40 out of 60: 66.67%, a D.
Is 10 out of 15 passing?
Yes. Where passing starts at 60%, which is 9 right out of 15, 10/15 clears it by 1 question. Where the line is 70%, as on the 7 point scale, it needs 11 right, 1 more right answer. Whether a D passes the class is a separate rule, covered in the passing grade guide.
Out of 15 grade chart with 10/15 marked
| Score | Percent | 10 pt | +/- | 7 pt |
|---|---|---|---|---|
| 15/15 | 100% | A | A | A |
| 14/15 | 93.33% | A | A | A |
| 13/15 | 86.67% | B | B | B |
| 12/15 | 80% | B | B- | C |
| 11/15 | 73.33% | C | C | D |
| 10/15 | 66.67% | D | D | F |
| 9/15 | 60% | D | D- | F |
| 8/15 | 53.33% | F | F | F |
| 7/15 | 46.67% | F | F | F |
| 6/15 | 40% | F | F | F |
| 5/15 | 33.33% | F | F | F |
| 4/15 | 26.67% | F | F | F |
| 3/15 | 20% | F | F | F |
| 2/15 | 13.33% | F | F | F |
| 1/15 | 6.67% | F | F | F |
| 0/15 | 0% | F | F | F |
Whole scores; the printable out of 15 chart adds half points, a lookup and a CSV download.
How to calculate 10 out of 15 as a percentage
Divide the number right by the number of questions, multiply by 100, then find the band on your school's scale. CurveFox reads the letter from the exact percent, the same rule as the grading scale chart.
Next step: put this test into your class grade with the grade calculator, see what the final needs with the final grade calculator, or curve a whole class with the grade curve calculator.
10/15 as a percent: worked example
You get 10 right on a 15 question test. What is the percent and the letter?
- 10 / 15 = 0.6667 (2/3 in lowest terms)
- 0.6667 x 100 = 66.67%, 67% rounded to a whole percent
- 66.67 is in 60 to under 70 on the 10 point scale (D), 63 to under 67 with pluses and minuses (D) and below 70 on the 7 point scale (F)
10/15 is 66.67%: a D on the 10 point and plus and minus scales and an F on the 7 point scale.
Questions and answers
Is a 10 out of 15 a good grade?
66.67% is a weak pass on the 10 point scale (a D). An A takes 14 right, 4 more right answers than 10. It passes where the line is 60% but not where it is 70%.
What do I need for the next letter after 10/15?
11 right out of 15 (73.33%) is a C with pluses and minuses, 1 more question than 10. That is also a C on the 10 point scale.
Does 10/15 round up to a higher letter?
Only if your teacher rounds first. 66.67% rounds to 67%, which would give a D+ instead of a D on the plus and minus scale. Read from the exact percent, the letter stays as shown; your syllabus says which rule applies.
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