Question 1

How do you calculate a weighted grade?

Accepted Answer

To calculate a weighted grade, multiply each assignment's score by its weight, sum all the weighted scores, then divide by the total weight. For example, if you scored 90% on homework (worth 30%) and 80% on a test (worth 70%), your weighted grade is (90 x 0.30 + 80 x 0.70) / (0.30 + 0.70) = 83%.

Question 2

How do you calculate GPA on a 4.0 scale?

Accepted Answer

To calculate GPA, convert each letter grade to its point value (A = 4.0, A- = 3.7, B+ = 3.3, etc.), multiply each by the course's credit hours, sum all quality points, then divide by total credit hours. For example, an A (4.0) in a 3-credit course and a B (3.0) in a 4-credit course gives (4.0 x 3 + 3.0 x 4) / (3 + 4) = 3.43 GPA.

Question 3

What grade do I need on my final exam?

Accepted Answer

Use the formula: Required Final Grade = (Desired Grade - Current Grade x (1 - Final Weight)) / Final Weight. For example, if you have an 85% and the final is worth 30%, to get a 90% overall you need: (90 - 85 x 0.70) / 0.30 = 101.7%. This calculator handles the math for you instantly.

Letter	Percentage	GPA
A+	97 - 100	4.0
A	93 - 96	4.0
A-	90 - 92	3.7
B+	87 - 89	3.3
B	83 - 86	3.0
B-	80 - 82	2.7
C+	77 - 79	2.3
C	73 - 76	2.0
C-	70 - 72	1.7
D+	67 - 69	1.3
D	63 - 66	1.0
D-	60 - 62	0.7
F	0 - 59	0.0

Grade Calculator

Weighted Grade Calculator

Final Grade Calculator

GPA Calculator

Grade Scale Reference