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What Do I Need on My Final?

Work backward from your target grade to find the exact score you need on your final exam.

Main Calculator

%
Your average so far on graded work
%
Your target course grade
%
What % of your course grade is the final
Required on Final
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F
0–59 D
60–69 C
70–79 B
80–89 A
90–100

My final has multiple parts

If your final is split into multiple sections with different points, calculate the blended score you need across parts.

I want a letter grade, not a number

Pick a letter grade and we'll fill in the minimum percentage needed to earn it.

Uses the minimum percentage for each grade band
Change my school's cut-offs

Custom grading scales vary by school. Enter your institution's thresholds and we'll recalculate everything.

Required score at each target grade

How this is calculated

required = (target − current × (1 − w)) / w

target = grade you want in the course, %
current = your average on graded work so far, %
w = final exam weight, as a decimal (e.g., 30% → 0.30)

Assumption: Your current grade is the average of all work graded so far, which makes up (1 − w) of your course grade. Everything ungraded counts toward the final.

Worked example

You have an 84% average on work worth 70% of the course. Your final is 30%. What do you need to finish with 90%?

required = (90 − 84 × (1 − 0.30)) / 0.30
required = (90 − 84 × 0.70) / 0.30
required = (90 − 58.8) / 0.30
required = 31.2 / 0.30
required = 104%

You'd need a 104% on the final — possible if there's extra credit, otherwise your best attainable grade is 88.8% (B).

What to do when the number is impossible

If our calculator shows your target is unreachable even with a perfect 100% final, you have several options. Ask your registrar about:

Can I retake this course or test?

Many schools allow grade replacement (the new grade replaces the old) or grade forgiveness (both count, but only one toward GPA). Deadlines vary widely; check your department or registrar's handbook.

Does my school offer extra credit?

Extra credit can raise your course grade above 100%, sometimes enough to reach your target. Ask your professor when extra work must be submitted—policies vary.

What's a pass/fail or audit option?

If available, converting to pass/fail means passing with any grade above ~60% (you need to confirm the threshold). Auditing means no grade appears on your transcript, but you don't get course credit.

Can I dispute a grade or ask for a regrade?

If you believe work was marked unfairly, request a regrade before any deadline (usually 1–2 weeks after grades are posted). Bring specific concerns; professors are not obligated to raise grades, but errors do get corrected.

Should I withdraw from the class?

Withdrawal deadlines are strict and appear on transcripts (usually marked W). Missing the deadline means you cannot drop; the course counts as F if you stop attending. Confirm your school's date with the registrar before deciding.

How much is my final actually worth?

Final exam weight varies widely by course type and school. There's no universal standard, so check your syllabus first.

Typical ranges:

  • Seminar or lab course: 10–25% (weighted toward participation, projects)
  • Regular lecture: 25–40% (balanced with homework and midterms)
  • Math or science: 30–50% (exams carry more weight)
  • Intro course: Often 40%+ (fewer assignments, heavy on testing)

If your syllabus is vague ("comprehensive final"), ask your professor directly. Weight affects how much the final can change your grade—the higher the weight, the more room it has to move your average.

Frequently asked questions

What if I get a 0 on my final?

Our calculator shows this in the band and verdict: the floor of your grade is current × (1 − w). If you have an 80% average and the final is 30%, a zero gives you 80 × 0.70 = 56% (F). Plan accordingly.

Can I have a grade above 100%?

Yes, if your school allows extra credit. Our calculator accepts grades above 100 and will show that you need a superlative final score if your target is high enough. The band extends only to 100%, so marks above that will sit off the right edge.

My current grade is above 100%. Is that normal?

Only if you've earned extra credit points. Enter it as-is; the math still works. Your floor if the final is 0 will also be above 100.

Why does the formula use (1 − w)?

Because w is the weight of the final. If the final is 30% of your grade, then everything you've done before is 70% (or 1 − 0.30). The formula blends your current performance over that portion with your final exam score over its portion.

Can I verify the math by hand?

Yes. Use the formula shown in "How this is calculated" and plug in your numbers. The worked example walks through a real case step-by-step so you can check our arithmetic.

What if my school uses a different grading scale?

Use the "Change my school's cut-offs" mode to enter your institution's letter-grade thresholds. The band and all letter-grade mappings will update instantly. Note: grading scales are set by your school and don't affect the required-score calculation, only the letter you earn.

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