diff --git a/src/utils/gpa-utils.ts b/src/utils/gpa-utils.ts
new file mode 100644
index 0000000..d63b73b
--- /dev/null
+++ b/src/utils/gpa-utils.ts
@@ -0,0 +1,21 @@
+/**
+ * This is an utility class to calculate GPA.
+ */
+export class GPAUtils
+{
+    // [[Min score, Letter grade, Base GPA], ...]
+    public static SCALE =
+    [
+        [96.5, 'A+', 4.00],
+        [92.5, 'A' , 3.75],
+        [89.5, 'A-', 3.50],
+        [86.5, 'B+', 3.25],
+        [82.5, 'B' , 3.00],
+        [79.5, 'B-', 2.75],
+        [76.5, 'C+', 2.50],
+        [72.5, 'C' , 2.25],
+        [70.5, 'C-', 2.00],
+        [69.5, 'D' , 1.00],
+        [0   , 'F' , 0.00]
+    ];
+}