Final Grade Calculator
Find exactly what score you need on the final exam to hit your target letter grade for the class. Breakpoints for A, A-, B, C, and D shown side by side.
ACADEMICCalculate the exact score you need on the final exam to hit a target letter grade for the class. Shows breakpoints for A, A-, B, C, and D side by side so you can plan your study effort.
Solves the weighted-average equation: (target - current_grade * (1 - final_weight)) / final_weight = needed score. Returns "impossible" if the result exceeds 100 and "already locked in" if you would pass even with a zero on the final. Verdict label (comfortable / tight / risky / extreme / impossible) summarizes how realistic each target is.
Final Grade Calculator
Find out exactly what score you need on the final exam to hit your target letter grade for the class. See breakpoints for B, A-, A, and A+ side by side.
Breakpoints for Common Targets
| Target | Need on final | Verdict |
|---|---|---|
| A (90%+) | 99.0% | Extreme - you need near perfect. |
| A- (87%+) | 87.0% | Risky - you need a strong performance. |
| B (80%+) | 59.0% | Comfortable - you have margin. |
| B- (77%+) | 47.0% | Comfortable - you have margin. |
| C (70%+) | 19.0% | Comfortable - you have margin. |
| C- (67%+) | 7.0% | Comfortable - you have margin. |
| D (60%+) | Already locked in | Comfortable - you have margin. |
How the Math Works
Your class grade is a weighted average. If your coursework so far (homework, midterms, etc.) is worth 75% of the class and you have an 88% in that portion, then your locked-in contribution is 88 × 0.75 = 66 percentage points. The final exam contributes the remaining 25%.
To finish with a target T (say, 90 for an A-), you need: (T - locked_in) / final_weight = score on final. With the 88%, 25% example and a T of 90, you would need (90 - 66) / 0.25 = 96 on the final.
If the math returns a number greater than 100, you literally cannot reach that target with this final (the score is "impossible"). If it returns 0 or below, the target is already locked in - you could skip the final and still get it.
Assumes the final exam is graded out of 100 and that no other coursework remains. If your school uses a +/- system, check the exact percentage cutoffs with the syllabus or registrar.