Grade Calculator – Enter assignment, quiz, and exam scores with their course weights to calculate your current weighted average and letter grade. Use the final exam planner to estimate the score needed to reach a target, and customize the letter-grade cutoffs to match your school.
Your coursework
Enter scores as percentages and weights as a percentage of the course. Scores above 100% are allowed for extra credit when your class permits them.
| Assignment | Score (%) | Weight (%) | Remove |
|---|
Letter grade scale
Adjust the cut-offs if your school uses a different scale. The calculator applies them to your weighted average.
Each marker shows a letter-grade cut-off.
What each component contributes
Run the calculation to compare each graded item’s weighted points. Items are ordered from largest contribution to smallest.
Component breakdown
| Assignment | Score | Weight | Weighted points | Share of grade |
|---|---|---|---|---|
| Run the calculation to fill this table. | ||||
Privacy: calculations run locally in your browser. Your entries are not uploaded or saved by this tool.
Final exam planner — what do I need?
Enter your current average for completed coursework, the final exam’s percentage of the total course grade, and your target course grade. This planner assumes the final is the only remaining graded item, it returns the score needed on that final or tells you when the target is out of reach.
Your average includes only rows with a score entered; blank-score items are excluded. Calculations run in your browser, and your entries are not uploaded or saved.
Table of Contents
What your weighted grade calculator result means
The weighted grade is not an average of your scores. It is the mean (average) of your scaled scores, where each score is scaled according to its weight. If you get the same on both a quiz and a final exam, a final exam, which accounts for 30 percent of your grade, can get you a lot further than a quiz worth 5 percent. The weighted average is the sum of the products of each score by its weight, divided by the sum of the weights. If the weights are 100 per cent, it is a formality, and the weighted points are just added to your final mark. This calculator works out the average of the rows with the score, if some items are not scored, it will not work out your average (e.g. it will not predict your final grade in the course) but it will work out your average on your work that has been marked.
Students frequently mix up the two concepts and pay a price for their mistake. When all grade averages are added together with equal weight, the unweighted mean is 82.5% for homework and 70% for exams, which is reassuring. With homework being 20% and exams being 80%, the true score would be closer to 75. If you know which items are most important, you know where an additional hour of study will get you the most points.
How the grade calculator works.
Each row contains a name, a score (as a percentage) and a weight (as a percentage). The calculator then proceeds to four steps.
- Multiply. For every row, score x weight will produce the weighted points that row represents. A 90 on a 25 percent assignment will count as 22.5 out of 100 points.
- Sum. The weighted points are totaled and the weights are totaled separately.
- Divide. Weighted average is the weighted points divided by the total weight. If your total is 100 or more, this is your grade out of 100.
- Translate. The percentage is compared using a letter scale. The default shows the following cut-offs: 90 = A, 80 = B, 70 = C, 60 = D, and there are bands between each cut-off. You can customize each cut-off in the grade scale panel to suit your school.
The bar chart allows you to compare the points that have been allocated to each component and determine if a poor quiz or a solid project is carrying the load. The breakdown table restates the numbers along with the percentage each number represents of the total, which will be helpful when explaining the number to a parent or teacher.
Working backwards from a desired grade
The second panel is the same as the first, but with the order of the operations reversed. You enter the current mark, the final exam’s mark, and the average mark you would like to achieve. The score required is the score needed to achieve the target grade minus the score which has already been achieved in the part to the left of the final, divided by the weight of the final. In symbols: required final score = (required target grade − current grade × (1 − final weight)) ÷ final weight, where the final weight is expressed as a decimal. The current grade should be for work completed prior to the final grade and the final grade should be for work in the final course. The calculation is based on the assumption that the last assignment is the only one that is graded.
This leads to the truth of restriction. The target could not be achieved using only the final, if its value is over 100 percent, the tool will not print a bogus number instead. If it requires a score less than the specified, it means that it is already set. The panel also displays the highest and lowest possible grades, which is typically the most soothing number a student with anxiety wishes to see.
Where people use a grade calculator
Students monitor a running average throughout the term, and it indicates to them the impact of their graded work. Course weights can be reviewed by teachers, parents and students can review realistic course weights on the final planner. This resource provides a percentage grade and a letter grade, it does not provide GPA and should not be used to replace an official grade report.
There are some tips to get the most out of it.
- List weights that add up to 100. The running average is still valid if a partial list is presented, but if a complete list is presented, then it is the grade which will be given.
- Pay particular attention to the share column. The most important item for study time is not necessarily the lowest scored item, it’s the item with the highest percentage of the grade.
- Compare the scale with your school. There are scales that give an A for a 92.5 and scales that give an A for a 90.5, so make up your own cut-offs once.
- Make the final planner at the beginning of the time. The earlier you’re aware of the score you require, the more time you will have to alter the situation.
- Follow the rules of your class for extra credit. A score of over 100% will be accepted up to 150%, but only when your instructor’s grading policy allows for bonus scores.
Related Tools
FAQ
What is my weighted grade?
Add together the scores multiplied by their weight, which is a decimal number. Multiply each score by its weight (as a decimal number) and sum the scores. If the weights are already totaling 100 per cent, the totals of the weighted scores will be your grade. Automatically calculates the full calculation as you fill in the rows.
What final grade will I need in order to pass the course?
Take away the points you’ve already earned on the grade and divide by the weight of the final. If the current grade is 82 with 20 percent of its value, and a target is set at 90, then what is needed is (90-82) x 0.8 / 0.2, or 122 percent — impossible, and the tool will inform you of that.
Why is it that the tool is dividing by the total weight and not by 100?
Thus a partial list will still provide a useful count. If, at this point, you have only completed work worth 60% of what is required in the course, then dividing by 60 will show you the average for work completed. After everything is in, both methods agree (with a total weight of 100).
Why is this different than my predicted final grade in the course?
Only rows containing scores will be considered for the weighted average. Blank-score rows will not be included and thus the result will represent your average for work completed to date. Does not assign grades to ungraded assignments or try to forecast grades.
May I use this grade calculator to work out my GPA?
No. This tool computes a percentage and plots it against the letter grade scale that you have defined. The rules for converting GPAs to accept between different schools vary and are not provided here; please refer to your school’s GPA policy or a dedicated GPA calculator.
Are there any chances to score more than 100%?
Yes. The maximum score for fields is 150%. Only enter a score greater than 100% when assignment credit is allowed by your instructor and when your instructor requires it to be part of the course syllabus for extra credit.
Reviewed by: aFreeTools Editorial Team
Last updated: October 04, 2026
Freshness: This calculator uses the weighted-average formula: sum of (score × weight) divided by the total weight of graded items. Its final-exam planner rearranges that formula to solve for the required exam score.
Disclaimer – This grade calculator is an educational tool. It estimates a weighted average from the numbers you enter and does not represent an official grade from any school, college or university. Always confirm your standing with your teacher or registrar, and treat the results as a planning aid rather than a record. Rounding, dropped scores, curving and school-specific rules can change a final grade.