The standard school formula
Percentage = (points earned ÷ points possible) × 100. Same math teachers use on paper.
Tools / Grade Percentage Calculator
Grade Percentage Calculator
Enter points earned and points possible. Get the percentage, a US letter grade, and matching GPA points.
Percentage = (points earned ÷ points possible) × 100
Enter values to see the result
- 1
Enter points earned
The score you (or a student) got on the assignment, quiz, or test.
- 2
Enter points possible
The maximum score for that work. Both values use the same unit (points).
- 3
Read the percentage
See earned ÷ possible × 100, plus a letter and 4.0 GPA for that percent.
Why convert points to a percentage
Most gradebooks and transcripts report percent, not raw points.
Letter and GPA in one step
Maps the percent to a common US plus/minus letter scale and 4.0 points.
Works for any point scale
10-point quizzes, 50-point labs, or 200-point exams. Only the ratio matters.
When to use this calculator
After grading a stack
Turn 37/40 into 92.5% without a spreadsheet.
Student check-ins
Show how many points were missed and what letter that earns.
Mixed assignment scales
Normalize different totals before averaging or weighting later.
Grade percentage formula
Percentage = (points earned ÷ points possible) × 100
Points possible must be greater than zero. Missed points = possible − earned.
Related calculators
Frequently asked questions
How do you calculate grade percentage?
Divide points earned by points possible, then multiply by 100.
Example: 42 earned out of 50 possible → (42 ÷ 50) × 100 = 84%.
Can earned points be higher than possible?
Yes, if your course allows extra credit. The percentage can go above 100%. The letter table still treats anything at or above 97% as A+.
What letter grade scale do you use?
A common US scale: A+ (97–100), A (93–96), A− (90–92), then B+/B/B−, C+/C/C−, D+/D/D−, and F below 60, with matching 4.0 GPA points.
Your school may use different cutoffs.
Is this the same as a quiz or test score calculator?
Are my scores stored?
No. Everything runs locally in your browser.
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