8.5 out of 11 as a percentage is 77.27% (C)

An 8.5/11 is 77.27%, which is a C on the standard grading scale (a C+ with plus and minus grades). That is a 2.0 GPA, and you got 2.5 wrong.

Next grade0.5 more → B9 out of 11 is 81.82%

With a 5-point curve82.27% → Bif your teacher adds 5 points

To pass (60%)Passed7 out of 11 is the passing line

What an 8.5/11 grade means

8.5 correct and 2.5 wrong on a 11-question test.
Each question is worth 9.09%, so every wrong answer costs 9.09 percentage points.
Only 8.5 out of 11 gives a C on this test.
0.5 more correct (9 out of 11, 81.82%) would make it a B.
It passes a 60% passing score, which needs 7 out of 11.

Divide the score by the total: 8.5 ÷ 11 = 0.7727.
Multiply by 100: 0.7727 × 100 = 77.27%.
Find 77.27% on the grading scale: A is 90% and up, B 80%, C 70% and D 60%, so it is a C.

Rounded to a whole number this is 77%, and the letter grade stays the same.

Scale	Cutoffs	Letter	GPA
Standard A–F	A 90, B 80, C 70, D 60	C	2.0
Plus and minus	A 93, A− 90, B+ 87, B 83, B− 80 …	C+	2.3
7-point	A 93, B 85, C 77, D 70	C	2.0

Which scale applies depends on your school or teacher; the syllabus usually says. The grading scales guide compares them.

Every possible score out of 11, with 8.5 highlighted. Pick any score to see its page.

Correct	Wrong	Percentage	Grade
11	0	100%	A
10	1	90.9%	A
9	2	81.8%	B
8	3	72.7%	C
7	4	63.6%	D
6	5	54.5%	F
5	6	45.5%	F
4	7	36.4%	F
3	8	27.3%	F
2	9	18.2%	F
1	10	9.1%	F
0	11	0%	F

It is a C, an average grade and a pass at most US schools.

2.0 on a 4.0 scale as a C, or 2.3 if your school uses plus and minus grades (C+).

With a half point, 9 out of 11 is 81.82%: a B on the standard scale and a B− with plus and minus grades.

4 at most with a 60% passing score: you need 7 out of 11. With a 70% passing score you need 8 out of 11.