About the Grade Calculator

Courses rarely grade everything equally — a final exam worth 35% matters far more than homework worth 5%. A weighted average multiplies each score by its weight before averaging: with homework at 20% and midterm at 30%, a 92 and an 85 contribute 18.4 and 25.5 points. Dividing by the total weight applied gives the current standing.

Planning for the final

The most useful question a student can ask is "what do I need on the final?" The answer comes from solving the weighted-average equation for the unknown: needed = (target − current × remaining weight) ÷ final weight. If you're at 88 with a 30% final, hitting a 90 target requires 94.7% — a hard but possible goal that tells you exactly how to allocate study time. If the required score exceeds 100%, the target is mathematically out of reach and the realistic aim shifts to damage control.