Grade Calculator

Calculate a weighted course grade and see the score needed on the final exam.

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Assignments

Final exam weight (%)

Target overall grade (%)

Result

Enter values to calculate.

Summary

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Detail

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Calculate your current weighted course grade from completed assignments, and see exactly what score you need on the final exam to hit your target grade.

How It Works

How Grade Calculator Works

Each assignment is entered as its weight (as a percentage of the total course grade) and the score you earned on it. The calculator multiplies each weight by its score (divided by 100) and adds these together to get your total "weighted points" earned so far, then divides by the total weight of completed work to show your current grade as a percentage.

To find what you need on the final, it takes your target overall grade, subtracts the weighted points you've already earned, and divides by the final exam's weight — telling you the minimum score on the final that would bring your overall grade up to the target.

Worked Example

See It In Action

With assignments worth 30% (scored 92), 20% (scored 88), and 10% (scored 100) — 60% of the course completed — your current grade is 92%. If the final exam is worth 40% and your target grade is 90%, you'd need to score 87% on the final to reach it.

Real-World Use Cases

Who Uses Grade Calculator and Why

Working out your current weighted grade in a class before the final exam, based on assignments already scored.
Finding the minimum score needed on a final exam to reach a specific target overall grade.
Checking whether a target grade is still mathematically achievable given the final exam's weight.
Deciding how much effort a final exam actually needs based on how far ahead or behind your target the current weighted grade already puts you.

Common Mistakes

Mistakes to Avoid

Entering assignment weights that don't correctly represent the completed portion of the grade — if the weights entered plus the final exam weight don't add up to the full grade, the required-score projection will be inaccurate.
Not noticing when the required final score comes back above 100% — this means the target is out of reach with the current assignment scores, not a calculation error.
Mixing up the target grade with your current grade — the calculator solves for what score is needed on the final to reach the target you set, not just what your grade currently stands at.

Pro Tips

Tips for Best Results

If the required score is unrealistically high, use the tool to test a slightly lower target grade to see what's actually achievable.
Re-run the calculation as soon as new assignment scores come in during the term to keep the final-exam target current.

Troubleshooting

Fixing Common Problems

The required final exam score is above 100%. — This means your target grade can't be reached even with a perfect score on the final, given the assignment scores already entered — you'd need extra credit or a different target.

The current weighted grade looks wrong. — Check that every assignment's weight and score were entered correctly and that the weights represent the portion of the grade completed so far, not the full course.

Glossary

Terms Explained

Weighted grade: A grade calculated by multiplying each assignment's score by its assigned weight and summing the results, rather than simple averaging.

Required final score: The minimum score needed on a remaining assignment (typically a final exam) to reach a specified target overall grade.

FAQ

Frequently Asked Questions

What if the required final exam score is over 100%?

That means your target grade isn't achievable even with a perfect score on the final, given your current standing — you would need to either revise your target or make up points elsewhere if your course allows extra credit.

What if my assignment weights don't add up to 100%?

The calculator works with whatever weights you enter, but the "completed" percentage shown reflects only those weights, and the final exam weight should be entered separately so the two together represent the full course.

Why is my current grade different from a simple average of my scores?

Because it's weighted — an assignment worth 30% of your grade affects the result more than one worth 10%, even if the raw scores are similar.

Can I use this for a course with no final exam?

Yes — just leave the final exam weight at 0 and use the "Current Grade" result on its own; the "needed on final" figure won't be meaningful in that case.