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Enter your current grade, the grade you're aiming for, and what the final is worth, and this gives you the score you need on that final. It solves the standard weighting equation — target = current × (1 − weight) + needed × weight — rearranged for the number you actually want.
Two answers matter as much as the arithmetic, so they're called out plainly rather than left as a number to interpret: when the score you'd need is above 100% the target simply isn't reachable, and the tool tells you the highest grade you can still finish on. When you'd pass even scoring zero, it tells you that too.
Frequently asked questions
What counts as my 'current grade'?
Your average across everything except the final. This is the step people get wrong: if your online portal is already counting the unwritten final as a zero, the grade it displays is too low, and feeding it in here will make the calculator far more pessimistic than reality. Look for a "current" or "in-progress" grade that excludes ungraded work.
What if I need more than 100%?
Then that grade is no longer mathematically reachable from where you are, and the tool shows the maximum you can still finish on. It's worth asking your instructor about extra credit, a dropped lowest score, or any reweighting policy before concluding anything — those exist more often than students assume.
Where do I find what the final is worth?
The syllabus, usually in a grading-breakdown table — "Final exam: 30%". If your course lists the final in points rather than a percentage, divide those points by the total points available across the whole course and use that.