Possible final grade range

Enter each completed score with its weight, then provide the combined weight of all unfinished work. The result gives your current weighted average and the worst and best final grades still reachable if the remaining work earns the minimum or maximum allowed score. It works with percentage weights, decimal weights, or point-style weights, provided every weight uses the same scale.

Describe the completed and unfinished parts of the course

Start by entering every completed piece of coursework as a score and a weight. A midterm worth 25 percent can use a weight of 25, while a quiz worth 5 percent can use 5. If your syllabus uses decimal shares, 0.25 and 0.05 work equally well. What matters is consistency: do not mix percentages, decimals, and raw points in the same request. Then enter the combined weight of all unfinished assignments. You do not need to predict individual remaining scores because this calculator is finding the outer limits, not a single forecast. By default, the lowest possible score is 0 and the highest is 100. You can change those bounds for courses with a different grading scale, guaranteed participation credit, capped assessments, or extra-credit rules. Completed scores must fall inside the same bounds, which catches common data-entry mistakes before a plausible-looking but misleading range is returned. The total declared weight is the sum of completed and remaining weight, so the calculation also works when the syllabus uses weights that do not literally add to 100.

Understand how the reachable range is calculated

Each completed score is multiplied by its weight, and those products are added to form the earned contribution so far. The current average divides that contribution by completed weight only, which describes performance on work already graded. The final range uses a different denominator: completed weight plus unfinished weight. For the worst reachable final grade, all remaining weight is assigned the minimum allowed score. For the best reachable final grade, it is assigned the maximum allowed score. These are mathematical endpoints, not predictions about likely performance. If half of the course remains, the interval may be wide even when the current average is stable. If only a small project remains, the interval will usually be narrow. Rounding is applied only to the reported values, after the weighted calculations, and you can request from zero to six decimal places. Because the same score bounds apply across completed and unfinished work, the output stays easy to interpret on conventional 0–100 scales as well as custom scales such as 0–20 or 1–10.

Use the result for planning without overreading it

Treat the worst and best values as boundary markers for planning. If a desired course grade lies above the best reachable value, even perfect scores on all remaining work cannot reach it under the weights supplied. If a threshold lies at or below the worst value, that outcome is already secured even at the minimum remaining score. When a target falls inside the interval, it is still possible, but this calculator does not say what average you must earn to hit that target; it only shows the full feasible span. Check the syllabus before acting on the result. Dropped assignments, category normalization, curved grades, replacement exams, penalties, extra credit, and weights that change after exemptions can all alter the effective calculation. Combine unfinished assignments into one remaining weight only when they share the same permitted score range. If one assessment has a special cap or guaranteed floor, calculate separate scenarios with appropriate bounds. Saving the input alongside the result makes it easier to update the range after the next grade arrives and to explain exactly which assumptions produced it.