26 out of 30 is 86.7%, which is a B on the standard US scale. Each question is worth 3.33 percentage points, so 28 correct (93.3%) is an A and 18 correct (60%) is the lowest pass.
26 out of 30 in percentage and letter grade
Twenty-six correct out of thirty is 86.67%. The B band runs from 83% to 86.99%, so this sits right at the top of a B.
One more correct answer, to 27, reaches 90% and an A−. This is the closest a two-question margin gets to the top band on a 30-question paper.
| Correct | Wrong | Percentage | Letter grade |
|---|---|---|---|
| 30 | 0 | 100% | A |
| 29 | 1 | 96.7% | A |
| 28 | 2 | 93.3% | A |
| 27 | 3 | 90% | A− |
| 26 | 4 | 86.7% | B |
| 25 | 5 | 83.3% | B |
| 24 | 6 | 80% | B− |
| 23 | 7 | 76.7% | C |
| 21 | 9 | 70% | C− |
| 18 | 12 | 60% | D− |
| 17 | 13 | 56.7% | F |
How many you can miss on a 30-question test
Longer tests give more room, because each question is worth less. On a 30-question paper every question is only 3.33 points.
- An A allows 2 wrong answers. Missing 3 drops the score to 90%, an A−.
- A B allows up to 5 wrong answers at 83.3%.
- The lowest pass is 18 correct (60%), so you can miss up to 12 questions and still pass.
Why the grade bands look uneven
With 30 questions the scores step by 3.33 points, which means some letters get two whole scores and others get one. An 86.7% and an 83.3% are both a B, while 80% alone is the B−.
That unevenness is normal and it is why reading the raw percentage is more reliable than counting questions. A grading chart for the test length removes the guesswork entirely.
Score something else
Use the score out of X converter for any result, or open the grading scale for 30 questions for the full table.
Frequently Asked Questions
What is 26 out of 30 as a percentage?+
26 out of 30 is 86.67%. Divide 26 by 30 to get 0.8667, then multiply by 100.
Is 26 out of 30 an A?+
No. An A starts at 93%, which is 28 correct out of 30. A 26 is 86.7%, a B.
What is 27 out of 30?+
27 out of 30 is 90%, an A−.
How many can I miss out of 30?+
You can miss up to 12 questions (18 correct) and still pass at 60%. For an A you can only miss 2.
Muhammd Salman
I build and maintain Grade Calculator independently. Every worked example on this site is checked against the underlying formula, with notes on where school or instructor policy can change the result. More about this site →