Points to Letter Grade Calculator
Convert raw points on any scale to a percentage and letter grade. Works for any assignment, quiz, or exam.
How to use this tool
- Enter points earned, total points possible, a cutoff, b cutoff, c cutoff and d cutoff in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your percentage and the full breakdown beneath it.
Convert any raw score to a letter grade with customisable cutoffs. Works for any grading scale your teacher uses.
Formula
Percentage = (Points Earned ÷ Total Points Possible) × 100
Letter Grade: A if % ≥ A cutoff, B if % ≥ B cutoff, C if % ≥ C cutoff, D if % ≥ D cutoff, else F.
How it works
This calculator converts raw points to a percentage by dividing earned points by the maximum possible and multiplying by 100, then assigns a letter grade by comparing the percentage against user-defined cutoffs for A, B, C, and D. Because the cutoffs are configurable, it works for any grading scale, not just the standard 90/80/70/60 thresholds. Accuracy depends on the cutoffs matching the instructor's actual grading policy.
Worked example
Worked example
- Points earned = 78, Total points possible = 100.
- Percentage = (78 ÷ 100) × 100 = 78%.
- Cutoffs: A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60.
- 78% is below the B cutoff (80) but above the C cutoff (70), so the letter grade is C.
Percentage: 78% — Letter Grade: C
Key terms
- Points earned
- The number of points a student received on an assignment or exam.
- Grade cutoff
- The minimum percentage required to earn a specific letter grade; cutoffs vary by institution and instructor.
- Custom grading scale
- A set of cutoff percentages defined by an instructor that may differ from the default A=90/B=80/C=70/D=60 scale.
- Letter grade
- An alphabetic symbol summarizing academic performance within a defined percentage range.
Frequently asked questions
- Can I change the letter grade cutoffs?
- Yes. Enter your professor's exact cutoffs in the A/B/C/D cutoff fields.
- How do I find the total points possible?
- Check the assignment rubric or your syllabus. Many professors list each assignment's point value.