13 out of 18 as a percentage
13 out of 18 is 72.22%, a C− on the standard grading scale. Passing at both 60% and 70%.
How it's calculated: 13 ÷ 18 = 0.7222, and 0.7222 × 100 = 72.22%.
13/18 on other grading scales
Compare the scalesGrading chart for a 18-question test
Every possible score on a 18-question test, by number wrong. Teachers: open it in the EZ grader to print it.
Questions about 13/18
Is 13 out of 18 a good grade?
It's a C− (72.22%): about average, and passing on most scales. 14 out of 18 (77.78%) would make it a C+.
Is 13 out of 18 passing?
Yes. 72.22% passes at both 60% (the usual D− cutoff) and 70% (the C cutoff many colleges use for pass/fail and major courses).
What is 13/18 as a GPA?
On a 4.0 scale, a C− (72.22%) is worth 1.7 grade points. If your school doesn't use + and − grades, it's a C, worth 2.0. See the full GPA scale.
How much will a 13/18 affect my grade?
It depends on how much the test counts. If it's 10% of your grade and you have a 90% now, a 72.22% takes you to 88.22% (down 1.78 points). If it's worth 20%, you'd land at 86.44%. For a final exam, use the final grade calculator.