Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Calculate the marks you need on remaining assessments to reach a target overall percentage.
Given the marks you've already secured, the total marks still up for grabs, and your target overall percentage, this tool calculates exactly how many of the remaining marks you need to score to hit that target.
Enter marks secured so far, total possible marks overall, remaining possible marks, and your target percentage. The marks you need out of the remaining total appear instantly.
This calculator works with percentages and weights rather than raw marks. There are four inputs: your current score (as a percentage) on the work already graded, the weight that graded work carries in the course, the overall grade you are aiming for, and the weight of everything still to come. The result is the percentage you need to average across the remaining weight. If you only know raw marks, convert them first: 45 out of 60 is 75 percent.
required % = (target - current score x current weight / 100) / (remaining weight / 100)
The tool multiplies your current score by its weight to find how many points of the final grade you have already banked, subtracts that from your target, and then spreads what is left over the remaining weight.
Suppose you scored 75 percent on assignments worth 40 percent of the course, you want an overall 80 percent, and the remaining work is worth 60 percent. Your banked points are 75 x 0.40 = 30. You still need 80 - 30 = 50 points, and those must come from a 60 percent slice. So 50 / 0.60 = 83.3 percent. In other words, you must average roughly 83.3 percent on everything left to reach an overall 80.
Now change the target to 90 percent. You would need (90 - 30) / 0.60 = 100 percent, meaning a perfect score on all the remaining work. Push the target to 92 and the tool reports a figure above 100 and labels it as not achievable, because no score can exceed the maximum.
The formula assumes a simple weighted average. It does not model dropped lowest scores, grade curves, minimum pass marks on individual components, rounding rules used by your institution, or bonus points. Some courses also require passing the final exam separately regardless of the overall average. Treat the output as planning guidance and confirm the exact grading policy with your instructor or the course handbook, especially when a borderline grade affects scholarships, progression or graduation.
Try several targets to see how sensitive your position is. Comparing the number needed for a B, an A minus and an A shows how much effort each grade boundary really costs. Recalculate every time a new grade is posted, moving the newly graded work into the current score and weight fields so the remaining weight shrinks accordingly.
That means your target isn't achievable given what you've already scored -- even a perfect score on everything remaining wouldn't reach it.
No, the tool does not enforce it. Normally they will add to 100 when every component is accounted for, but you can enter other values if part of the course does not count toward your grade.
Enter percentages. Convert raw marks by dividing your marks by the maximum and multiplying by 100, then type the result into the current score field.
It means the points you have already banked meet or exceed your target, so under a straightforward weighted average you would still reach it even with a very low remaining score. Check your institution's pass-mark rules before relying on that.
It is an average across the entire remaining weight. If several assessments remain, you can reach it with any mix of scores that averages to that figure, weighted by their sizes.