GPA Calculator
Calculate your Grade Point Average on a 4.0 scale by entering each course's letter grade and credit hours — the credit-weighted average, with an approximate percentage.
Courses
Your GPA
3.63
10 total credits · ≈ 91%
How It Works
GPA (Grade Point Average) summarises academic performance as a single number, usually on a 4.0 scale. Each letter grade maps to grade points (A/A+ = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, and so on down to F = 0), and each course carries a credit-hour weight reflecting its size. Your GPA is the credit-weighted average: multiply each course's grade points by its credits, add those up, and divide by the total credits. This weighting means a high grade in a 4-credit course moves your GPA more than the same grade in a 1-credit course. Because grade-to-point mappings differ slightly between institutions (some use A+ = 4.3, plus/minus variations, or percentage bands), always confirm your college's exact scale. This calculator uses the common US 4.0 scale, lets you add any number of courses, and updates your GPA and an approximate percentage instantly as you type.
Formula
GPA = Σ(grade points × credit hours) ÷ Σ(credit hours), on a 4.0 scale (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0).
Frequently Asked Questions
How is GPA calculated?
Multiply each course's grade points by its credit hours, add these products across all courses, and divide by the total credit hours. This gives a credit-weighted average on a 4.0 scale.
What is the grade-to-point scale?
Commonly: A+/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 = 1.0, F = 0. Some institutions vary (e.g., A+ = 4.3) — check your college's official scale.
Why do credit hours matter for GPA?
Credits weight each course by its size. A grade in a 4-credit course affects your GPA four times as much as the same grade in a 1-credit course, so heavier courses have a bigger impact.
What is the difference between GPA and CGPA?
GPA usually refers to one semester or term; CGPA (Cumulative GPA) is the weighted average across all semesters/terms of your program. You compute CGPA by combining all courses' grade points and credits.
How do I convert GPA to a percentage?
There is no universal formula — conversions vary by institution. A rough US approximation is percentage ≈ GPA × 25 (so 4.0 ≈ 100%), which this calculator shows, but use your college's official conversion for anything formal.