Your weighted grade so far, and what the final exam has to be.
Assessment
Score (%)
Weight (%)
Weighted grade
—
—
Letter grade
—
Weight counted
—
Weight still to come
Grading policies differ by course — some drop the lowest score, round differently, or weight categories in ways not captured here. Check your syllabus or instructor for the official rule before relying on this for how much the final counts.
How this works
Grade so far = Σ(score × weight) ÷ Σ(weight)
Final needed = (target − grade so far × (1 − w)) ÷ w
where w = the final's weight as a decimal
Percentage
Letter
97–100
A+
93–96
A
90–92
A−
87–89
B+
83–86
B
80–82
B−
70–79
C
60–69
D
below 60
F
Weights need not add to 100 while a course is running — the average uses whatever has been graded so far.
A final worth 40% can move a course grade a long way; one worth 10% barely can.
If the mark you need is above 100, the target is out of reach with that final alone.
How do I work out a weighted grade?
Multiply each score by its weight, add those together, then divide by the total weight used so far. A 90% worth 30% contributes 27 points out of a possible 30.
What do I need on the final exam?
Subtract what your existing work already contributes from your target, then divide by the final’s weight. Switch to the "What do I need?" tab and it does this for you.
Why can the answer be over 100%?
Because the target is no longer reachable from that final alone. Either the goal is too high for the marks already banked, or the final carries too little weight.
Does this drop my lowest score automatically?
No — it uses exactly the rows and weights you enter. If your course drops the lowest quiz or assignment, remove that row (or set its weight to 0) before calculating, since grading policies like this vary by instructor and are not applied automatically.