GPA Calculator
Add each course with its credit hours and letter grade. Your semester GPA on the standard 4.0 scale updates in one click — private, in-browser, no sign-up.
Your courses
Standard 4.0 scaleHow GPA is calculated
GPA stands for grade point average — a single number that summarizes your performance across courses with different weights. On the standard 4.0 scale used by most US colleges and high schools, each letter grade converts to points: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, F = 0.0.
The formula
GPA = Σ (grade points × credits) ÷ Σ credits. A 3-credit A earns 12 grade points; a 4-credit B earns 12. Together that's 24 points over 7 credits — a 3.43 GPA. Because credits multiply the points, a 4-credit course moves your GPA twice as much as a 2-credit course. That's why a rough grade in a heavy course like organic chemistry stings more than one in a 1-credit seminar.
Semester vs. cumulative GPA
Your semester GPA covers only the current term's courses. Your cumulative GPA spans every course you've taken. To compute a cumulative figure, add all courses from all semesters into the calculator — or combine semester results: multiply each past semester's GPA by its credit count, add this term's grade points, and divide by total credits. Some schools also weight AP or honors courses on a 5.0 scale; if yours does, add 1.0 to the point value for those courses before calculating.
What GPA do you need?
Common thresholds: 2.0 is typically the minimum to remain in good academic standing, 3.0 is a common scholarship and graduate-school floor, and 3.5+ is competitive for selective programs and honor societies. If you're projecting what this semester does to your cumulative GPA, remember that early semesters move the number the most — with 120 credits completed, one semester barely shifts the average.
Working on a single course rather than a whole semester? Use the weighted grade calculator for your current standing, or the final grade calculator to see what you need on the final exam.
Frequently asked questions
Convert each letter grade to points (A=4.0, A−=3.7, B+=3.3, B=3.0, and so on), multiply by the course's credit hours, sum the results, and divide by total credits. A 3-credit A (12 points) and a 4-credit B (12 points) give a GPA of 24 ÷ 7 = 3.43.
Yes. GPA is credit-weighted: a 4-credit course moves your GPA twice as much as a 2-credit course. An A in a lab science often helps more than an A in a 1-credit elective.
Add every course from all semesters into the calculator, or combine: multiply each past semester's GPA by its credits, add this semester's grade points, and divide by total credits overall.