Percentage Grade Calculator: Calculate Your Grade Percentage
Our Percentage Grade Calculator helps you convert your points earned into a percentage grade and letter grade equivalent. Whether you're calculating a single assignment grade, exam score, or overall course percentage, this tool provides accurate results using standard academic grading scales.
What This Calculator Does
The Percentage Grade Calculator computes your grade by:
- Converting points to percentage: Calculates (points earned / points possible) × 100
- Determining letter grade: Assigns letter grades based on standard academic scales (A: 90-100%, B: 80-89%, C: 70-79%, D: 60-69%, F: 0-59%)
- Supporting +/- grades: Provides precise letter grade classifications including A+, A-, B+, B-, etc.
- Handling decimal points: Supports fractional points for precise calculations
This calculator is useful for students, teachers, and educators who need to quickly determine percentage grades from raw point values, understand letter grade equivalents, or verify grade calculations.
How to Use It
- Enter points earned: Input the number of points you received on the assignment or exam
- Enter points possible: Input the total points possible for the assignment or exam
- Click "Calculate" to see your results
The calculator will display your grade percentage, letter grade equivalent, and both point values for verification.
Interpreting Your Results
- Grade Percentage: Your score as a percentage (0-100%), rounded to 2 decimal places
- Letter Grade: The corresponding letter grade based on standard academic scales:
- A+: 97-100%
- A: 93-96%
- A-: 90-92%
- B+: 87-89%
- B: 83-86%
- B-: 80-82%
- C+: 77-79%
- C: 73-76%
- C-: 70-72%
- D+: 67-69%
- D: 63-66%
- D-: 60-62%
- F: 0-59%
- Points Earned: The number of points you received (for verification)
- Points Possible: The total points available (for verification)
Common Mistakes to Avoid
- Entering percentages instead of points: This calculator requires raw point values, not percentages. If you have a percentage, you'll need to convert it back to points first
- Incorrect point values: Double-check that you're entering the correct points earned and points possible values
- Confusing letter grade scales: Different schools may use slightly different scales, so verify your institution's specific grading policy
- Rounding errors: Always verify calculations manually for high-stakes assignments, especially when dealing with weighted grades
Keep Learning
If you're working on improving your grades or understanding academic calculations, these guides can help:
Sources
- U.S. Department of Education – Academic grading standards and practices
- National Center for Education Statistics – Grade point and percentage conversion guidelines
