How does a percentage grade map to letters?

Under the standard US system: 90-100% is an A, 80-89% is a B, 70-79% is a C, 60-69% is a D, and below 60% is an F.

Can this calculate curved grades?

Yes, if your teacher adds a flat curve, you can increase your points earned or total points to estimate your final curved percentage.

Usually, 60% (D-) or 70% (C-) is considered the minimum passing threshold, depending on school guidelines.

Education Tool

Convert numeric raw scores (points earned vs. total points) into percentages, letter grades, and GPA scale ratings.

Live Solver

Points Earned

Total Possible Points

Percentage Grade85.00%

Derived Letter GradeB

Standard GPA Weight3.0 / 4.0

Equation ModelPercentage Grade = (Points Earned ÷ Total Possible Points) × 100

Calculates the score percentage by taking the fraction of points earned out of the total and scaling it to a 100-point percentile standard.

Symbol	Description
Percentage Grade	Percentage out of 100%
Points Earned	Raw points or marks awarded
Total Possible Points	Max available points on the assignment or exam

Type in your earned score (e.g., 43).
Type in the total maximum possible points (e.g., 50).
Select your school's grading scale (Standard 10-point, High School, or custom) to see the letter grade and 4.0 GPA equivalent.

Scenario Context: A student gets 18.5 points out of 22 on a biology quiz.

Step 1: Divide points earned by total: 18.5 ÷ 22 = 0.840909.

Step 2: Multiply by 100 to get percentage: 0.840909 × 100 = 84.09%.

The quiz score is 84.09%, which converts to a letter grade of "B" and a standard 4.0 GPA weight of 3.0.

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