What is 18 out of 30 as a Grade?
18 out of 30 is 60.00%, which is a D letter grade.
Scoring 18 out of 30 places you exactly at the 60% mark — the lowest boundary of a passing score in most U.S. schools. While a D is technically passing under a 60% threshold, it sits just at the edge, meaning any course or institution that requires a 65% or higher minimum would consider this score a failing result. Three more correct answers would move you into C- range.
| Score | Percentage | Letter Grade |
|---|---|---|
| 18/30 | 60.00% | D |
How Is 18/30 Calculated?
Divide your score by the total number of questions, then multiply by 100:
18 ÷ 30 × 100 = 60.00%
What Letter Grade Is 18 out of 30?
On the standard U.S. grading scale, 60.00% earns a D. The full scale is shown below with your score highlighted.
| 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 ← Your Score (60.00%) |
| 0% – 59.99% | F |
Your score of 60.00% lands at the very bottom of the D range. The next achievable grade above your current score is a C- at 21/30 (70.00%), which requires 3 more correct answers. Note that C+ (77%–79.99%) and B+ (87%–89.99%) are not achievable on a 30-question test with whole number scoring.
Complete 30-Question Test Grading Scale
Every possible whole number score on a 30-question test is listed below.
| Score | Percentage | Letter Grade |
|---|---|---|
| 30/30 | 100.00% | A+ |
| 29/30 | 96.67% | A |
| 28/30 | 93.33% | A |
| 27/30 | 90.00% | A- |
| 26/30 | 86.67% | B |
| 25/30 | 83.33% | B |
| 24/30 | 80.00% | B- |
| 23/30 | 76.67% | C |
| 22/30 | 73.33% | C |
| 21/30 | 70.00% | C- |
| 20/30 | 66.67% | D |
| 19/30 | 63.33% | D |
| 18/30 | 60.00% | D |
| 17/30 | 56.67% | F |
| 16/30 | 53.33% | F |
| 15/30 | 50.00% | F |
| 14/30 | 46.67% | F |
| 13/30 | 43.33% | F |
| 12/30 | 40.00% | F |
| 11/30 | 36.67% | F |
| 10/30 | 33.33% | F |
| 9/30 | 30.00% | F |
| 8/30 | 26.67% | F |
| 7/30 | 23.33% | F |
| 6/30 | 20.00% | F |
| 5/30 | 16.67% | F |
| 4/30 | 13.33% | F |
| 3/30 | 10.00% | F |
| 2/30 | 6.67% | F |
| 1/30 | 3.33% | F |
Note: B+ (87%–89.99%) and C+ (77%–79.99%) are not achievable on a 30-question test with whole number scoring. No whole number score produces a percentage that falls within either of those ranges.
What Does 60.00% Mean in Real Academic Terms?
A 60.00% is a marginal academic result. In courses where 60% is the minimum passing threshold, an 18/30 technically passes — but only by the narrowest possible margin. In many college courses and stricter high school programs that require 65% or 70% to pass, this score would be considered failing. For GPA purposes, a D typically contributes 1.0 grade points on a standard 4.0 scale, which can meaningfully drag down a cumulative GPA over time. If you scored 18/30 on a practice or low-stakes test, it signals a clear opportunity to focus on the areas you missed before the next assessment.
Is 18 out of 30 a Passing Grade?
It depends on the passing threshold your school or course uses. At a 60% minimum, 18/30 passes exactly. At any higher threshold, it does not pass.
| Passing Threshold | Required Score | 18/30 Passes? |
|---|---|---|
| 60% | 18/30 | ✅ Yes (exactly) |
| 65% | 20/30 | ❌ No |
| 70% | 21/30 | ❌ No |
| 75% | 23/30 | ❌ No |
| 80% | 24/30 | ❌ No |
How Many Questions Can You Get Wrong?
Use this table to see the minimum correct answers needed for each target grade on a 30-question test.
| Target Grade | Minimum % | Minimum Correct | Maximum Wrong |
|---|---|---|---|
| A (93%) | 93% | 28/30 | 2 |
| B (83%) | 83% | 25/30 | 5 |
| C (73%) | 73% | 22/30 | 8 |
| D (60%) | 60% | 18/30 | 12 |
Want to calculate a different score? Use the free grade calculator to get instant results for any test.
Frequently Asked Questions
What is 18 out of 30 as a grade? 18 out of 30 is 60.00%, which is a D letter grade on the standard U.S. grading scale. It is the lowest score that earns a D, sitting exactly at the 60% threshold.
Is 18 out of 30 a passing grade? It depends on your school’s passing requirement. Under a 60% minimum threshold, 18/30 passes exactly. However, if your course or school requires 65% or higher to pass, a score of 18/30 would not be considered passing.
How many questions would I need to get right to pass with a C- on a 30-question test? To earn a C- (70%) on a 30-question test, you need at least 21 correct answers. That means getting 3 more questions right than an 18/30 score.
What is the next letter grade above D on a 30-question test? The next achievable grade above D on a 30-question test is C- at 21/30 (70.00%). Note that C+ is not achievable on a 30-question test with whole number scoring.
How many questions can you miss on a 30-question test and still get a D? To earn at least a D (60%) on a 30-question test, you need a minimum of 18 correct answers, meaning you can miss at most 12 questions.
What letter grade is 60%? A 60.00% is a D letter grade. On the standard U.S. grading scale, any score from 60.00% to 69.99% earns a D.