EDUCATION CALCULATOR
Final Grade Calculator
Find out what grade you need on your final exam to achieve your desired overall course grade.
Enter your current course grade, the percentage of your course grade represented by the final, and your desired overall grade.
How Does the Final Grade Calculator Work?
The calculator determines the score you need on your final exam based on your current course grade, the percentage of your course grade represented by the final exam, and your desired overall grade.
The calculation assumes your current grade represents all coursework completed before the final exam.
Final Grade Formula
The required final exam grade can be calculated using:
Required final = (desired grade − current grade × (1 − final weight)) ÷ final weight
The final-exam weight should be expressed as a decimal when performing the calculation. For example, 30% becomes 0.30.
Final Grade Calculator Example
Suppose your current course grade is 85%, your final exam is worth 30% of the course grade, and you want to finish the course with a 90%.
The calculation is:
(90 − 85 × 0.70) ÷ 0.30
This means you would need approximately 101.67% on the final exam to finish with a 90%.
Because that score is above 100%, a 90% overall grade is not achievable with the final exam alone under these assumptions.
What If the Required Grade Is Over 100%?
If the calculator shows that you need more than 100% on the final exam, your desired overall grade cannot be reached through the final exam alone.
Your actual options may depend on your instructor's grading policy, extra credit opportunities, remaining assignments, or other course requirements.
What If You Need 0% or Less?
If the required final exam score is zero or below, your current grade already meets or exceeds your desired overall grade based on the information entered.
You may still need to take the final exam if your course or school requires it.
Why Does the Final Exam Weight Matter?
The larger the final exam's contribution to the overall course grade, the greater its potential impact on your final result.
For example, a final worth 50% of the course has considerably more influence on the overall grade than a final worth 10%.
Maximum Possible Overall Grade
The calculator also shows the maximum overall grade you could achieve if you scored 100% on the final exam.
This can help you determine whether your desired course grade is still mathematically possible.
Final Grade vs. Current Grade
Your current grade represents your performance before the final exam. Your final course grade combines that existing grade with your final exam score according to the final exam's weighting.
If you simply want to convert points earned into a percentage and letter grade, use our Grade Calculator.
For overall grade point average calculations, use our GPA Calculator.
Frequently Asked Questions
What grade do I need on my final exam?
Enter your current grade, the percentage your final exam is worth, and your desired overall grade. The calculator will determine the final exam score required.
What if I need more than 100% on my final?
If the required score is above 100%, your desired overall grade cannot be achieved through the final exam alone under the entered grading assumptions.
What if I need 0% on my final?
A required score of 0% or less means your current grade already meets your desired overall grade based on the information entered.
Does the final exam weight affect the calculation?
Yes. The final exam's weight determines how much influence your final exam score has on your overall course grade.
Can I use this calculator for weighted courses?
Yes, provided your current grade accurately represents the completed portion of the course and the final exam weight is entered correctly.
Is the final grade calculator exact?
The calculation is mathematically exact for the values entered, but your school's grading rules, rounding policies, extra credit, and other assignments may affect your actual final grade.