What is 28 out of 30 as a Grade?
28 out of 30 is 93.33% — an A letter grade.
If you scored 28 correct answers on a 30-question test, you answered 93.33% of the questions correctly and missed 2. Under the standard grading scale used by most U.S. schools and colleges, 93.33% falls in the A range. On the plus/minus scale, 93.33% is also an A. This is a strong performance — you are just one question away from an A+ score, and well above the A- threshold of 90%.
| Score | Percentage | Letter Grade |
|---|---|---|
| 28 out of 30 | 93.33% | A |
How Is 28/30 Calculated?
28 ÷ 30 × 100 = 93.33%
You divide your score (28) by the total questions (30), then multiply by 100 to get your percentage. A 93.33% places you firmly in the A range on the standard academic grading scale.
What Letter Grade Is 28 out of 30?
Under the standard U.S. grading scale, 28 out of 30 is an A grade (93.33%).
| Percentage Range | Letter Grade |
|---|---|
| 97% – 100% | A+ |
| 93% – 96.99% | A |
| 90% – 92.99% | A- |
| 87% – 89.99% | B+ |
| 83% – 86.99% | B |
| 80% – 82.99% | B- |
| 77% – 79.99% | C+ |
| 73% – 76.99% | C |
| 70% – 72.99% | C- |
| 60% – 69.99% | D |
| 0% – 59.99% | F |
At 93.33%, a 28/30 score sits solidly in the A range. You are just 2 percentage points — one correct answer — away from an A+ (96%+). Scoring 29 out of 30 (96.67%) would bring you to an A, which on the plus/minus scale is still an A but closer to the A+ boundary.
Complete 30-Question Test Grading Scale
Scored on a 30-question test? Here is every possible score with its percentage and letter grade:
| Correct Answers | Wrong Answers | Percentage | Letter Grade |
|---|---|---|---|
| 30 | 0 | 100% | A+ |
| 29 | 1 | 96.67% | A |
| 28 | 2 | 93.33% | A |
| 27 | 3 | 90% | A- |
| 26 | 4 | 86.67% | B+ |
| 25 | 5 | 83.33% | B |
| 24 | 6 | 80% | B- |
| 23 | 7 | 76.67% | C+ |
| 22 | 8 | 73.33% | C |
| 21 | 9 | 70% | C- |
| 20 | 10 | 66.67% | D |
| 19 | 11 | 63.33% | D |
| 18 | 12 | 60% | D- |
| 17 | 13 | 56.67% | F |
What Does a 93.33% Mean in Real Academic Terms?
A 93.33% is an excellent result by any academic standard. Unlike scores in the C or B range that represent average to above-average performance, an A grade signals a strong command of the tested material with only minor gaps — in this case, 2 missed questions out of 30.
In practical terms: a 28/30 will contribute positively to your GPA regardless of the assignment weight. On a 4.0 GPA scale, an A typically converts to 4.0 points, giving you the maximum GPA contribution for this assessment. If this is a major exam, a 93.33% provides a strong cushion for your final course grade. Use our Weighted Grade Calculator to see exactly how this score factors into your overall course grade based on its weight.
The only meaningful next step from a 28/30 is scoring 29 or 30 on future assessments — the difference between an A and a perfect score is just one or two questions.
Is 28 out of 30 a Passing Grade?
Yes — a 93.33% passes at every institution regardless of their passing threshold.
- At schools where passing = 60%: Yes ✅
- At schools where passing = 70%: Yes ✅
- At schools where passing = 75%: Yes ✅
- At schools where passing = 80%: Yes ✅
Even the most demanding programs — nursing, pharmacy, engineering — typically require 75–80% to pass. A 93.33% clears every threshold with significant margin.
How Many Questions Can You Get Wrong on a 30-Question Test?
| Target Grade | Minimum Correct | Maximum Wrong |
|---|---|---|
| A+ (97%) | 30 | 0 |
| A (93%) | 28 | 2 |
| A- (90%) | 27 | 3 |
| B+ (87%) | 26 | 4 |
| B (83%) | 25 | 5 |
| B- (80%) | 24 | 6 |
| C+ (77%) | 23 | 7 |
| C (73%) | 22 | 8 |
| C- (70%) | 21 | 9 |
| D (60%) | 18 | 12 |
At 28 correct answers (2 wrong), you are well within the A range and only 2 questions away from a perfect score.
Calculate Your Own Grade Instantly
Need to calculate a different score? Use our free Grade Calculator to instantly find the percentage and letter grade for any test score — just enter the total number of questions and how many you got wrong.
👉 Use the Free Grade Calculator →
It supports custom grading scales, half points, bonus points, and works for tests of any length from 1 to 500 questions.
Frequently Asked Questions
What is 28 out of 30 as a percentage? 28 divided by 30 equals 0.9333, which as a percentage is 93.33%. To calculate it: 28 ÷ 30 × 100 = 93.33%.
What letter grade is 28 out of 30? 28 out of 30 is an A grade. On the standard grading scale, 93.33% falls in the A range (93–96.99%). On the plus/minus scale, it is also an A.
Is 28 out of 30 a good grade? Yes — a 93.33% is an excellent grade. It is an A on both the standard and plus/minus scales, contributes 4.0 GPA points, and exceeds the passing threshold at every institution.
How many wrong answers is 28 out of 30? If you scored 28 out of 30, you got 2 questions wrong. 30 total minus 28 correct equals 2 incorrect answers.
What is the difference between 28/30 and 29/30? 28 out of 30 equals 93.33% (A) while 29 out of 30 equals 96.67% (A). Both are A grades on the standard scale. On the plus/minus scale, both are A grades as well — 96.67% sits just below the A+ threshold of 97%.
What GPA is 28 out of 30? A 28/30 score equals 93.33% (A grade), which corresponds to a 4.0 GPA on the standard 4.0 scale.