21 out of 30 as a percentage
21 out of 30 is 70%, a C− on the standard grading scale. Passing at both 60% and 70%.
How it's calculated: 21 ÷ 30 = 0.7, and 0.7 × 100 = 70%.
21/30 on other grading scales
Compare the scalesGrading chart for a 30-question test
Every possible score on a 30-question test, by number wrong. Teachers: open it in the EZ grader to print it.
Questions about 21/30
Is 21 out of 30 a good grade?
It's a C− (70%): about average, and passing on most scales. 22 out of 30 (73.33%) would make it a C.
Is 21 out of 30 passing?
Yes. 70% passes at both 60% (the usual D− cutoff) and 70% (the C cutoff many colleges use for pass/fail and major courses).
What is 21/30 as a GPA?
On a 4.0 scale, a C− (70%) 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 21/30 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 70% takes you to 88% (down 2 points). If it's worth 20%, you'd land at 86%. For a final exam, use the final grade calculator.