Enter points earned or correct answers. See your percentage and letter grade.
A test grade calculator divides points earned by total possible points and multiplies by 100. Use correct answers only when all questions have equal value; otherwise enter actual points awarded. Decimal marks and extra credit are supported, and letter grades follow your chosen scale.
Example: 18 out of 20 gives 18 ÷ 20 × 100 = 90%, an A on the standard A–F scale.
No account required. Just the numbers you need.
Test score—
POINTS TO PERCENTAGE
Convert your test score
Live
YOUR SCORE
100%
A
20 earned out of 20.
0
W wrong R reset Z undo
Extra credit & table display
Added separately to the entered score. In points-earned mode, you can also enter a score above the total directly.
Grading scale
Standard A–F
Letter grades use the original percentage, before display rounding.
Your school’s policy takes priority.
YOUR ANSWER KEY
Your test’s score chart
20 points
Select a row to check that score.
Points earned
Points lost
Score %
Letter
21 scores
Earned points are before any separate bonus. Percentages include the bonus set above.
For a test worth exactly 100 points, earned points equal the percentage.
All 201 half-point scores from 0 to 100 are listed below in static HTML. This reference
always uses the standard A–F scale, without bonus points.
For a different total, decimal step, extra credit, or custom scale, use the calculator above.
Its live chart is separate from this fixed reference.
100 possible points, half-point increments
Points earned
Possible points
Percentage
Standard grade
0
100
0%
F
0.5
100
0.5%
F
1
100
1%
F
1.5
100
1.5%
F
2
100
2%
F
2.5
100
2.5%
F
3
100
3%
F
3.5
100
3.5%
F
4
100
4%
F
4.5
100
4.5%
F
5
100
5%
F
5.5
100
5.5%
F
6
100
6%
F
6.5
100
6.5%
F
7
100
7%
F
7.5
100
7.5%
F
8
100
8%
F
8.5
100
8.5%
F
9
100
9%
F
9.5
100
9.5%
F
10
100
10%
F
10.5
100
10.5%
F
11
100
11%
F
11.5
100
11.5%
F
12
100
12%
F
12.5
100
12.5%
F
13
100
13%
F
13.5
100
13.5%
F
14
100
14%
F
14.5
100
14.5%
F
15
100
15%
F
15.5
100
15.5%
F
16
100
16%
F
16.5
100
16.5%
F
17
100
17%
F
17.5
100
17.5%
F
18
100
18%
F
18.5
100
18.5%
F
19
100
19%
F
19.5
100
19.5%
F
20
100
20%
F
20.5
100
20.5%
F
21
100
21%
F
21.5
100
21.5%
F
22
100
22%
F
22.5
100
22.5%
F
23
100
23%
F
23.5
100
23.5%
F
24
100
24%
F
24.5
100
24.5%
F
25
100
25%
F
25.5
100
25.5%
F
26
100
26%
F
26.5
100
26.5%
F
27
100
27%
F
27.5
100
27.5%
F
28
100
28%
F
28.5
100
28.5%
F
29
100
29%
F
29.5
100
29.5%
F
30
100
30%
F
30.5
100
30.5%
F
31
100
31%
F
31.5
100
31.5%
F
32
100
32%
F
32.5
100
32.5%
F
33
100
33%
F
33.5
100
33.5%
F
34
100
34%
F
34.5
100
34.5%
F
35
100
35%
F
35.5
100
35.5%
F
36
100
36%
F
36.5
100
36.5%
F
37
100
37%
F
37.5
100
37.5%
F
38
100
38%
F
38.5
100
38.5%
F
39
100
39%
F
39.5
100
39.5%
F
40
100
40%
F
40.5
100
40.5%
F
41
100
41%
F
41.5
100
41.5%
F
42
100
42%
F
42.5
100
42.5%
F
43
100
43%
F
43.5
100
43.5%
F
44
100
44%
F
44.5
100
44.5%
F
45
100
45%
F
45.5
100
45.5%
F
46
100
46%
F
46.5
100
46.5%
F
47
100
47%
F
47.5
100
47.5%
F
48
100
48%
F
48.5
100
48.5%
F
49
100
49%
F
49.5
100
49.5%
F
50
100
50%
F
50.5
100
50.5%
F
51
100
51%
F
51.5
100
51.5%
F
52
100
52%
F
52.5
100
52.5%
F
53
100
53%
F
53.5
100
53.5%
F
54
100
54%
F
54.5
100
54.5%
F
55
100
55%
F
55.5
100
55.5%
F
56
100
56%
F
56.5
100
56.5%
F
57
100
57%
F
57.5
100
57.5%
F
58
100
58%
F
58.5
100
58.5%
F
59
100
59%
F
59.5
100
59.5%
F
60
100
60%
D
60.5
100
60.5%
D
61
100
61%
D
61.5
100
61.5%
D
62
100
62%
D
62.5
100
62.5%
D
63
100
63%
D
63.5
100
63.5%
D
64
100
64%
D
64.5
100
64.5%
D
65
100
65%
D
65.5
100
65.5%
D
66
100
66%
D
66.5
100
66.5%
D
67
100
67%
D
67.5
100
67.5%
D
68
100
68%
D
68.5
100
68.5%
D
69
100
69%
D
69.5
100
69.5%
D
70
100
70%
C
70.5
100
70.5%
C
71
100
71%
C
71.5
100
71.5%
C
72
100
72%
C
72.5
100
72.5%
C
73
100
73%
C
73.5
100
73.5%
C
74
100
74%
C
74.5
100
74.5%
C
75
100
75%
C
75.5
100
75.5%
C
76
100
76%
C
76.5
100
76.5%
C
77
100
77%
C
77.5
100
77.5%
C
78
100
78%
C
78.5
100
78.5%
C
79
100
79%
C
79.5
100
79.5%
C
80
100
80%
B
80.5
100
80.5%
B
81
100
81%
B
81.5
100
81.5%
B
82
100
82%
B
82.5
100
82.5%
B
83
100
83%
B
83.5
100
83.5%
B
84
100
84%
B
84.5
100
84.5%
B
85
100
85%
B
85.5
100
85.5%
B
86
100
86%
B
86.5
100
86.5%
B
87
100
87%
B
87.5
100
87.5%
B
88
100
88%
B
88.5
100
88.5%
B
89
100
89%
B
89.5
100
89.5%
B
90
100
90%
A
90.5
100
90.5%
A
91
100
91%
A
91.5
100
91.5%
A
92
100
92%
A
92.5
100
92.5%
A
93
100
93%
A
93.5
100
93.5%
A
94
100
94%
A
94.5
100
94.5%
A
95
100
95%
A
95.5
100
95.5%
A
96
100
96%
A
96.5
100
96.5%
A
97
100
97%
A
97.5
100
97.5%
A
98
100
98%
A
98.5
100
98.5%
A
99
100
99%
A
99.5
100
99.5%
A
100
100
100%
A
Scroll inside the table to see every score. No expansion or pagination is required.
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WHO IT HELPS & HOW TO USE IT
How to use test grader
For students checking a marked quiz and teachers converting awarded points into a percentage.
Enter the possible points and earned points. Use answer counts only when every question has the same value.
Include extra credit in the earned score or as a separate bonus, once. Decimal scores such as 18.5 out of 25 are supported.
Read the percentage and letter, then select standard, plus/minus, or custom thresholds under Grading scale.
Before you rely on the result: This page starts from points earned. Counting wrong answers uses a different workflow in Calculator Grader. The fixed 100-point reference does not change with calculator settings.
Percentage = (points earned + separate bonus) ÷ possible points × 100
Enter the points you earned and the points available. An 18.5 out of 25 quiz gives 18.5 ÷ 25 × 100 = 74%. If every question has the same value, you can use the number correct and total question count instead.
For questions with different values, add the awarded marks and enter the total earned points. A correct-answer count alone would treat a one-point question and a five-point question as equal.
Extra credit can raise the percentage above 100%. Enter it in your earned score or as separate bonus points, but do not count the same bonus twice. Choose your school’s letter thresholds under Grading scale.
Quiz grader: one question count, one class
Use this quiz grader for a marked quiz when you know the points earned or the number correct. Correct-answer counts work only when each question has the same value; otherwise add the awarded marks.
For a stack of papers graded by missed answers, use the calculator grader. For student names, a shared test total, and a class CSV, use the teacher grader.
Does this page or the calculator grader page match my grading method?
Start here when you know points earned or correct answers; use the calculator grader page when you are counting wrong answers or points lost. Use the teacher grader for a named class roster and CSV results.
How do I include extra credit on a test?
Enter a score above the possible points directly, or put the bonus in Additional bonus points. For 25 earned out of 20 possible, the result is 125%. Do not add the bonus in both places.
Does this support decimal quiz scores?
Yes. Enter values such as 18.5 earned out of 25 possible. The decimal setting changes the displayed percentage; letter grades use the unrounded result.
Can I use the number of correct answers instead of points?
Yes, when every question has equal value. Use correct answers as points earned and question count as possible points. Otherwise enter the actual marks awarded.