What is a 12 out of 18 Grade? Calculate Percentage & Letter Grade

Quick Answer: A score of 12 out of 18 is a 66.67%. On a standard US grading scale, this percentage translates to a D+ letter grade. This is a passing grade, but it is below average.

Scoring a 12 out of 18 on a test means you got exactly two-thirds of the questions right. It’s a passing score, but it indicates there are key concepts you haven’t fully mastered. We’ll show you the exact percentage and what this grade means.

Calculating Your 12/18 Score

To find the percentage for a score of 12 out of 18, you divide 12 by 18 and then multiply the result by 100.

What Letter Grade is a 66.67%?

A 66.67% falls into the D+ category on most grading scales, putting it just above a standard D.

Letter Grade	Percentage Range	Is 12/18 (66.67%) in this range?
C-	70-72%	No
D+	67-69%	Close, but typically no. (Some scales may vary)
D	63-66%	Yes (Falls here or D+)
D-	60-62%	No

What to do with a D+ Grade

A D+ grade is a clear signal that you need to reinforce your understanding of the subject. You passed, which is positive, but you missed one-third of the material. Take this opportunity to go over the 6 points you missed. Was there a common theme? Were they all on a specific chapter? Identifying this pattern is the most effective way to improve your score on the next, more important exam.

Frequently Asked Questions (FAQ)

How many more points did I need to get a C-?

To reach a C- (70%), you would have needed 12.6 points. Realistically, this means you would have needed to score 13 out of 18 (which is 72.2%), so you were just one point away from a C-.

Does a D+ affect my GPA?

Yes. A D+ grade is typically worth 1.3 points on a 4.0 GPA scale. This is significantly lower than a C (2.0) or B (3.0) and will pull your overall GPA down. It’s a grade you’ll want to avoid repeating if you want to maintain a strong academic record.