In the NSPA Scholarship Program Data Standard, requirements based on GPA are coded in the Academic Eligibility entity. By definition, U.S. values are encoded on an unweighted 4.0 scale, including a decimal value.
This document provides recommended conversions both to and from the 4.0 Scale:
Conversions to 4.0 Scale (U.S.)
Letter Grade (A - F Scale) to 4.0 Scale (U.S.)
Letter Grade
4.0 Scale
A+
4.0
A
4.0
A-
3.7
B+
3.3
B
3.0
B-
2.7
C+
2.3
C
2.0
C-
1.7
D+
1.3
D
1.0
F
0.0
Percent Grade (1–100 Scale) to 4.0 Scale (U.S.)
Percent Grade
4.0 Scale
97–100
4.0
93–96
4.0
90–92
3.7
87–89
3.3
83-86
3.0
80-82
2.7
77–79
2.3
73–76
2.0
70–72
1.7
67–69
1.3
65–66
1.0
65 or Below
0.0
AP Grade (Weighted 5.0 Scale) to 4.0 Scale (U.S.)
The table aligns with a simplified, rounded [AP Grade]/5.0 * 4.0 conversion.
AP Grade
4.0 Scale
5.0
4.0
4.6
3.7
4.1
3.3
3.8
3.0
3.4
2.7
2.9
2.3
2.5
2.0
2.1
1.7
1.6
1.3
1.3
1.0
1.2 or Below
0.0
Honors Grade (Weighted 4.5 Scale) to 4.0 (U.S.)
The table aligns with a simplified, rounded [Honors Grade]/4.5 * 4.0 conversion.
Honors Grade
4.0 Scale
4.5
4.0
4.2
3.7
3.7
3.3
3.4
3.0
3.0
2.7
2.6
2.3
2.3
2.0
1.9
1.7
1.5
1.3
1.1
1.0
1.0 or Below
0.0
Conversions From 4.0 Scale (U.S.)
4.0 Scale (U.S.) to Letter Grade (A - F Scale)
4.0 Scale
Letter Grade
4.0
A+
3.8–3.9
A
3.4–3.7
A-
3.1–3.3
B+
2.8–3.0
B
2.4–2.7
B-
2.1–2.3
C+
1.8–2.0
C
1.4–1.7
C-
1.1–1.3
D+
0.8–1.0
D
0.0–0.7
F
4.0 Scale (U.S.) to Percent Grade (1–100 Scale)
This conversion produces symmetrical results with the Percent-to-4.0 conversion above.
4.0 Scale
Percent Grade
4.0
100
3.9
100
3.8
100
3.7
92
3.6
91
3.5
90
3.4
89
3.3
88
3.2
87
3.1
86
3.0
85
2.9
84
2.8
83
2.7
82
2.6
81
2.5
80
2.4
79
2.3
78
2.2
77
2.1
76
2.0
75
1.9
74
1.8
73
1.7
72
1.6
71
1.5
70
1.4
69
1.3
68
1.2
67
1.1
66
1.0 or below
0
4.0 Scale (U.S.) to AP Grade (Weighted 5.0 Scale)
The table aligns with a simplified, rounded [4.0 Grade]/4.0 * 5.0 conversion.
4.0 Scale
AP Grade
4.0
5.0
3.9
4.9
3.8
4.8
3.7
4.6
3.6
4.5
3.5
4.4
3.4
4.3
3.3
4.1
3.2
4.0
3.1
3.9
3.0
3.8
2.9
3.6
2.8
3.5
2.7
3.4
2.6
3.3
2.5
3.1
2.4
3.0
2.3
2.9
2.2
2.8
2.1
2.6
2.0
2.5
1.9
2.4
1.8
2.3
1.7
2.1
1.6
2.0
1.5
1.9
1.4
1.8
1.3
1.6
1.2
0.0
1.0
1.3
0.9 or below
1.1
4.0 Scale (U.S.) to Honors Grade (Weighted 4.5 Scale)
The table aligns with a simplified, rounded [4.0 Grade]/4.0 * 4.5 conversion.