Test Grade Calculator: Calculate Your Grade After a Test
Our Test Grade Calculator helps you determine your overall course grade after taking a test or quiz. Whether you want to see how a test score affects your grade or plan ahead for upcoming assessments, this tool provides instant calculations based on your current grade, test score, and test weight.
What This Calculator Does
The Test Grade Calculator computes your updated course grade by:
- Weighting your current grade: Accounts for the portion of your grade that comes from assignments, quizzes, and other work completed before the test
- Incorporating test performance: Adds your test score weighted by its percentage of the total course grade
- Calculating overall grade: Combines both portions to show your updated course grade
- Breaking down contributions: Shows how much your current grade and test score each contribute to the final result
This calculator is useful for students who want to understand how test performance impacts their overall course grade, track progress throughout the semester, or plan study strategies based on grade goals.
How to Use It
- Enter your current grade: Input your course grade percentage before taking the test (typically 0-100%)
- Enter test weight: Input what percentage of your total course grade the test represents (e.g., 20% for a midterm, 10% for a quiz)
- Enter test score: Input your test score as a percentage (0-100%)
- Click "Calculate" to see your updated overall grade
The calculator will show your overall grade after the test, along with a breakdown of how your current grade and test score each contribute to the result.
Interpreting Your Results
- Overall Grade: Your updated course grade percentage after incorporating the test score, rounded to 2 decimal places
- Current Grade Portion: The contribution from your grade before the test (Current Grade × (100% - Test Weight))
- Test Portion: The contribution from your test score (Test Score × Test Weight)
Common Mistakes to Avoid
- Incorrect test weight: Make sure you're using the test weight from your syllabus (e.g., if a test is worth 20% of your grade, enter 20, not 0.20)
- Mixing percentage formats: Keep all values as percentages (0-100), not decimals (0-1)
- Using raw test scores: Convert your test score to a percentage if needed (e.g., 85/100 = 85%)
- Forgetting about extra credit: If your test includes extra credit that pushes your score above 100%, enter the actual percentage earned
Keep Learning
If you're working on improving your test performance or planning your academic strategy, these guides can help:
Sources
- National Center for Education Statistics – Academic grading standards and practices
- Educational Testing Service – Assessment weighting and grade calculation methods
