Final Grade Calculator

Find the exact score you need on your final exam to get the grade you want. See the score needed for an A, B, C and D at a glance.

How much the final counts toward your course grade. Check your syllabus.
You need on the final
–

Score needed for each grade
Final gradeScore needed
Your course grade would be –

How the final grade calculator works

Your course grade is a mix of two parts: the grade you have earned so far, and the score you get on the final. The final's weight decides how big each part is. If the final is worth 25%, then everything before it counts for the other 75%.

The calculator works backward from the grade you want. It takes away what your current grade already contributes, then works out what the final must add to reach your goal.

The formula

Needed = (Target − Current × (1 − w)) ÷ w

Target is the course grade you want, Current is your grade right now, and w is the final's weight as a decimal (25% = 0.25).

Worked example

Jordan has an 84% in the class, and the final is worth 25%.

  • To finish with a 90% (A-), Jordan needs (90 − 84 × 0.75) ÷ 0.25 = 108%. That is not possible without extra credit.
  • To finish with an 80% (B-), Jordan needs (80 − 63) ÷ 0.25 = 68%.
  • To finish with a 70% (C-), Jordan needs only 28%.

So Jordan can safely aim for a solid B, and knows an A would need help from extra credit.

How to get your numbers

  • Current grade: the percentage shown in your grade portal or on your latest report. Make sure all graded work is included.
  • Final weight: listed in your syllabus. If your class uses points, divide the final's points by the total course points.
  • Target grade: the lowest percentage for the letter grade you want. Many US schools use 90% for an A-, 80% for a B-, 70% for a C- and 60% for a D-, but scales vary.

Study tips when the stakes are high

  • Spend the most time on topics that carry the most points on the exam. Ask your teacher what the final covers.
  • Use old quizzes and practice tests. Retrieval practice works better than rereading notes.
  • If the score you need is very high, ask early about extra credit, retakes or dropped assignments rather than after the exam.
  • If you only need a low score, still prepare. A strong final can lift your grade, and some classes require a minimum score to pass.

Last reviewed October 2026.

Frequently asked questions

What does it mean if I need more than 100% on the final?

It means the grade you want is out of reach with the final alone, unless your teacher offers extra credit or drops a low score. Try a lower target to see what is still possible, and talk to your teacher early about any options.

How do I find out how much my final is worth?

Check your course syllabus or grading policy. It usually lists the final exam as a percentage of the course grade, such as 20% or 30%. If you cannot find it, ask your teacher or check your school's online grade portal.

My class uses points instead of percentages. Can I still use this?

Yes. Divide the points the final is worth by the total points in the course to get its weight. For example, a 200-point final in a 1,000-point course is worth 20%. Your current grade is your points earned divided by points possible so far.

Is my current grade the same as my grade before the final?

Yes. Use the grade your teacher or portal shows now, before the final is taken. If some assignments are still missing or ungraded, the real number may change.

Does this work for a semester or quarter exam?

It works for any single assessment that counts for a fixed share of the grade, including midterms, semester exams and final projects. Enter that assessment's weight as the final exam weight.

Will my school round my grade up?

Some teachers round, for example 89.5% up to 90%, and others do not. This calculator shows exact numbers without rounding, so aim for a little above the cut-off to be safe.