30 out of 40 as a percentage

Percentage75%
Letter gradeC
GPA points2.0
Wrong10

30 out of 40 is 75%, a C on the standard grading scale. Passing at both 60% and 70%.

How it's calculated: 30 ÷ 40 = 0.75, and 0.75 × 100 = 75%.

30/40 on other grading scales

Compare the scales
Standard with + and −CC is 73% to just under 77%
Plain 90/80/70/60CC is 70% to just under 80%
7-point scaleDD is 70% to just under 77%

Grading chart for a 40-question test

Every possible score on a 40-question test, by number wrong. Teachers: open it in the EZ grader to print it.

WrongScore%Grade
040/40100%A+
139/4097.5%A+
238/4095%A
337/4092.5%A−
436/4090%A−
535/4087.5%B+
634/4085%B
733/4082.5%B−
832/4080%B−
931/4077.5%C+
1030/4075%C
1129/4072.5%C−
1228/4070%C−
1327/4067.5%D+
WrongScore%Grade
1426/4065%D
1525/4062.5%D−
1624/4060%D−
1723/4057.5%F
1822/4055%F
1921/4052.5%F
2020/4050%F
2119/4047.5%F
2218/4045%F
2317/4042.5%F
2416/4040%F
2515/4037.5%F
2614/4035%F
2713/4032.5%F
WrongScore%Grade
2812/4030%F
2911/4027.5%F
3010/4025%F
319/4022.5%F
328/4020%F
337/4017.5%F
346/4015%F
355/4012.5%F
364/4010%F
373/407.5%F
382/405%F
391/402.5%F
400/400%F

Questions about 30/40

Is 30 out of 40 a good grade?

It's a C (75%): about average, and passing on most scales. 31 out of 40 (77.5%) would make it a C+.

Is 30 out of 40 passing?

Yes. 75% passes at both 60% (the usual D− cutoff) and 70% (the C cutoff many colleges use for pass/fail and major courses).

What is 30/40 as a GPA?

On a 4.0 scale, a C (75%) is worth 2.0 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 30/40 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 75% takes you to 88.5% (down 1.5 points). If it's worth 20%, you'd land at 87%. For a final exam, use the final grade calculator.