How to calculate final grade
Needed = (Target − Current × (1 − w)) ÷ w w = final exam weight
Worked example. You need on the final: 105%.
Example inputs — Current grade: 85%; Grade you want: 90%; Final exam weight: 25%. Starting values are illustrative.
That's above 100% — the target may not be reachable.
From George Guju, founder of Calculyn · Educational calculator guidance, not professional advice.
How it works
Your final class grade is a weighted blend of your current grade and your final exam score. Rearranging that blend tells you exactly what you need on the exam.
Assumptions & limitations
- Results are rounded for display.
Formula and assumptions reviewed October 2026 by the Calculyn team. How we build our calculators
Frequently asked questions
What if my class uses points instead of percentages?
Convert your current points to a percentage of points possible so far, and use the final's share of total points as its weight.