Grade Average Calculator

A Grade Average Calculator helps you calculate your overall average across multiple courses or assignments. Add each subject, choose percent or letter, enter credits/weight, and get your average percentage, letter grade, and GPA.

Grade Average Calculator
Summary
Average
90.29%
Letter
A-
GPA
3.70 / 4.0
Total credits / weight
7.00
Rows
2
Final outcome: 90.29% • A- • 3.70 (4.0)
Letter thresholds
Courses and grades
Course / Item Type Grade Credits / Weight Action
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Weighted Grade Average: Formula and Example

Weighted Average (%) formula:

Weighted Average = (Σ (Grade × Credits)) ÷ (Σ Credits)

Example

  • Math: 88% with 3 credits → 88 × 3 = 264
  • Science: 92% with 4 credits → 92 × 4 = 368
  • Total weighted sum = 264 + 368 = 632
  • Total credits = 3 + 4 = 7
  • Average = 632 ÷ 7 = 90.29%

After that, the calculator maps your percent to a letter grade based on the chosen scheme and converts that letter into GPA on your selected GPA scale.

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