Grade Calculator
Grade calculator with percentage grades, letter grades and points grade calculations:
Final grade calculator
How to calculate your grade
With the help of this grade calculator you can calculate your current weighted grade or unweighted grade in terms of percentage, letter grade, or GPA. The tool will also output the weight of all remaining exams, and assignments and has the option of calculating the minimum score you need to obtain on a final exam in order to achieve a target overall grade for a class or course.
To use the calculator, enter the number of grades you currently have, then each grade as a percent or letter grade, and finally the weight each grade adds towards the overall. If no weights are entered, the weights are assumed equal and the calculator will output the unweighted average grade. Otherwise a weighted average grade will be produced in terms of percentage, GPA, and a letter grade.
What grade do I need on my final?
If you haven't yet got a score on the final exam for a given class, you can use this tool as a final grade calculator. In order to achieve a given grade goal for the entire class, course, or semester, a given minimum grade is required on the final exam, depending on both the weighted average grade to that date, and the weight of the final on the overall grade. This minimum required score can be calculated using the following formula:
Required final score = (Grade Goal - Current Grade x (100% - Weight of Final(%))) / Weight of Final(%)
The current grade is calculated based on the weighted average of all marks to date. The weight of the final test is calculated as 100% minus the combined weight of all grades to date. Therefore, if the combined weight of the scores you enter is 65% then the final exam will have a weight of 100% - 65% = 35%.
How to convert a grade to percentage?
Our grade calculator uses the following table to convert letter grades to percentages. Note that since this is not a universally applicable table, ideally one would want to know the exact percentage scores and use these as input for the calculator, otherwise the results may be slightly off.
| Letter Grade | Percentage | GPA |
|---|---|---|
| A+ | 97-100% | 4.3 |
| A | 93-96% | 4.0 |
| A- | 90-92% | 3.7 |
| B+ | 87-89% | 3.3 |
| B | 83-86% | 3.0 |
| B- | 80-82% | 2.7 |
| C+ | 77-79% | 2.3 |
| C | 73-76% | 2.0 |
| C- | 70-72% | 1.7 |
| D+ | 67-69% | 1.3 |
| D | 63-66% | 1.0 |
| D- | 60-62% | 0.7 |
| F | 0-59% | 0.0 |
Weighted grade calculation
The weighted grade is equal to the sum of the product of the weights (w) in percent (%) times the grade (g):
Weighted grade = w1×g1+ w2×g2+ w3×g3+...
Example
Math course with grade of 80 and weight of 30%.
Biology course with grade of 90 and weight of 50%.
History course with grade of 72 and weight of 20%.
The weighted average grade is calculated by:
Weighted grade =
= w1×g1+ w2×g2+ w3×g3
= 30%×80+ 50%×90+ 20%×72 = 83.4
When the weights are not in percent (hours or points...), you should also divided by the sum of the weights:
Example
3 points Math course with grade of 80.
5 points Biology course with grade of 90.
2 points History course with grade of 72.
The weighted average grade is calculated by:
Weighted grade =
How to calculate my grade
Grade calculation. How to calculate your grade.
Weighted grade calculation
The weighted grade is equal to the sum of the product of the weights (w) in percent (%) times the grade (g):
Weighted grade = w1×g1+ w2×g2+ w3×g3+...
When the weights are not in percent (hours or points...), you should also divided by the sum of the weights:
Weighted grade = (w1×g1+ w2×g2+ w3×g3+...) / (w1+w2+w3+...)
Example
3 points Math course with grade of 80%.
5 points Biology course with grade of 90%.
2 points History course with grade of 72%.
The weighted average grade is calculated by:
Weighted grade =
= (w1×g1+ w2×g2+ w3×g3) / (w1+w2+w3)
= (3×80%+ 5×90%+ 2×72%) / (3+5+2) = 83.4%
