Final Grade Calculator
The exam score you need for a target grade. e.g. “What do I need on the final to finish with 85%?”
Enter your values
Results update as you type. All calculation happens in your browser.
Methodology
The exam score you need for a target grade. This tool uses a standard, documented formula and runs entirely on your device.
Last reviewed January 2026 · Runs client-side
Finding the score you need on a final
When a final exam is worth a fixed share of your course grade, you can work backwards from the grade you want to the score you need. The answer depends on three things: your current grade, how much the final is worth, and your target.
The result is honest about feasibility. If the required score is above 100%, the target isn't reachable through the exam alone; if it's below zero, you've already secured your goal. Knowing this early helps you set a realistic target and plan your study time.
How to use this calculator
- Enter your current grade in the course.
- Enter how much the final exam is worth.
- Enter the overall grade you're aiming for, and read the score you need.
What the inputs mean
- Current grade
- Your grade so far, before the final.
- Final exam weight
- The percentage of the course the final contributes.
- Desired course grade
- The overall grade you want to finish with.
With a 78% average and a final worth 30%, reaching an 85% overall would require about 101% on the final, a signal to adjust the target or the weight assumption.
The formula, in plain terms
Required = (Target − Current × (1 − w)) / w, where w is the final's weight as a decimal.
Good to know
- If the required score exceeds 100%, aim for a slightly lower overall target.
- Double-check the exam weight against your syllabus, it drives the whole result.
Frequently asked questions
What if my course has other graded items left?
This assumes the final is the only remaining component. If more items remain, treat their combined weight as the 'final weight' for an approximate answer.
Last reviewed January 2026. This explainer is general information, not professional advice.