Final Grade Calculator
Know your current grade and how much the final exam is worth? Enter your target and find out what you need to score.
What this means: If your required final exam score is 87%, you need at least an 87 on the final to reach your target grade.
About this calculator
The final grade calculator answers a question every student asks the week before finals: what do I need to get on this exam? You enter your current weighted grade in the class, the grade you want to end the class with, and the percentage of your overall grade that the final exam is worth. The tool returns the score you would need on the final to land at your target — assuming the rest of your grade is locked in and the final is graded on the percentage you entered.
Use the result as a planning tool, not as a guarantee. Many courses have curves, extra credit, dropped scores, or late penalties that shift the math. Confirm your current weighted grade and the exact final exam weight with your syllabus or instructor before relying on a specific number.
How it works
The formula is: required final = (desired − current × (1 − w)) ÷ w, where w is the final exam weight expressed as a decimal. So if your current grade is 85, your target is 90, and the final is worth 30% of the course, you need 90 − 85 × 0.7 = 30.5, divided by 0.3, which is roughly 101.67 — usually unrealistic without extra credit.
Example calculation
Current grade 88, target 90, final exam worth 25% of the course. Required final score = (90 − 88 × 0.75) ÷ 0.25 = 96. You would need a 96 on the final to bring the class average up to 90.
What this means
If the required score is between 0 and 100, your target is mathematically reachable. If it is above 100, you would need something more than perfect — usually only possible with curves or bonus points. If it is below 0, you have already built enough margin for the target, as long as the final exam is still completed according to your class rules. Either way, the number is a target, not a promise.
FAQ
- Where do I find my current grade?
- Most learning management systems (Canvas, Blackboard, PowerSchool, Infinite Campus) show a weighted course grade on the gradebook page. Use that number, not a simple average of your scores.
- How do I find the final exam weight?
- Check your course syllabus. It usually lists each category — homework, quizzes, midterms, final — and the percentage each contributes to the final course grade.
- What if the required score is over 100?
- The target is not reachable on the final alone. Look for extra credit, dropped scores, or talk with your instructor about realistic options.
- Can I use this if my final is pass/fail?
- Not directly. This calculator assumes the final is graded on a 0–100 scale and contributes a known percentage to your overall grade.