Final Grade Calculator

Use this Final Grade Calculator to estimate the score you need on your final exam to reach a target course grade. You can also enter an expected final exam score to estimate your final course grade.

Final Grade Calculation Method

First calculate how much of the course grade is already completed:

Current weight = 100% − final exam weight

Then calculate the contribution from your current grade:

Current contribution = current grade × current weight ÷ 100

The final exam score needed is:

Required final score = (target grade − current contribution) ÷ final exam weight × 100

If you already have an expected final exam score:

Projected final grade = current contribution + (expected final score × final exam weight ÷ 100)

Example

Suppose your current grade is 82%, your target grade is 85%, and the final exam is worth 30%.

Current weight = 100 − 30 = 70%

Current contribution = 82 × 70 ÷ 100 = 57.4

Required contribution from final = 85 − 57.4 = 27.6

Required final score = 27.6 ÷ 30 × 100 = 92%

You would need approximately 92% on the final exam to finish with an 85% course grade.

Important Notes

• Use the final exam weight shown in your syllabus or official gradebook.
• The calculation assumes your current grade represents all coursework except the final exam.
• A required score above 100% means the target is not mathematically reachable through the final exam alone under these assumptions.
• Extra credit, dropped assignments, grade curves, category weighting, minimum exam requirements, and rounding rules can change the official result.
• Your instructor or institution determines the official final course grade.

Sources

• Mercer University — Weighted Average Grade Calculator
• Suffolk University — Understanding Weighted Course Grades