成績計算ツール
最終成績と試験で必要な点数を計算
出典と方法論
Grade = (Points Earned / Total Points) × 100Percentage grade calculation
How to Use the Grade Calculator
Calculate your current grade and determine what you need on remaining assignments to reach your target. Add assignments with their scores and weights to see your weighted average and plan your study strategy.
Understanding Weighted Grades
Weighted grades give different assignments different importance. For example, a final exam worth 30% of your grade has more impact than a homework assignment worth 5%. Our calculator uses the formula:
Weighted Average = Sum of (Score x Weight) / Total Weight
Planning Your Study Time
- Focus on high-weight assignments for maximum impact
- If a target grade is impossible, adjust expectations realistically
- Use the "what do I need" feature to set specific goals
Standard Grading Scale
Most schools use: A (90-100), B (80-89), C (70-79), D (60-69), F (below 60). Some use +/- grades for more precision.
よくある質問
Multiply each assignment score by its weight, sum the results, then divide by total weight. If homework (20%) is 90%, tests (50%) are 85%, and finals (30%) are 88%: (90x0.2 + 85x0.5 + 88x0.3) / 1.0 = 86.9% weighted average.
Our calculator solves this. Generally: (Desired Grade - Current Weighted Average x Current Weight) / Final Weight. If you have 82% on 70% of grade and need 80% overall, you need (80 - 82x0.7) / 0.3 = 76% on the final.
GPA is a primary factor in college admissions. Most selective schools expect 3.5+ GPA. A weighted GPA above 4.0 (from AP/Honors classes) shows academic rigor. GPA trends matter too - improving grades show positive trajectory.
Unweighted GPA caps at 4.0 regardless of class difficulty. Weighted GPA awards extra points for AP/Honors classes (often 5.0 for an A). Weighted GPA can exceed 4.0 and shows course rigor. Colleges consider both.
Yes, depending on test weight and remaining assignments. If a test is 15% of your grade and you failed (50%), you lost 7.5% from potential total. Strong performance on other assessments can compensate. Use our calculator to plan.
Importance depends on teacher weighting. Tests often count 50-70% while homework is 10-30%. However, doing homework improves test performance. Focus on understanding concepts through homework to perform better on heavily-weighted tests.
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