GPA Calculator (4.0 Scale)
Calculate your grade point average on the standard US 4.0 scale. Supports any number of courses, credit hours, and letter or numeric grades.
What this calculates
Grade point average (GPA) is the weighted average of your grades on a standardized scale — most commonly the 4.0 scale used in the United States. Each course's grade is converted to a number (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0), then weighted by credit hours so a 4-credit class counts twice as much as a 2-credit one. This calculator handles any number of courses and shows your cumulative GPA instantly.
Formula & how it works
GPA = Σ (grade_point × credit_hours) ÷ Σ credit_hours. Grade points follow the standard US scale: 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. Some institutions use straight 4.0 (no plus/minus); others use a 5.0 weighted scale for honors and AP. Always check your school's policy.
Worked example
Three courses: Math (3 credits, A = 4.0), History (4 credits, B+ = 3.3), Chemistry (3 credits, C = 2.0). Weighted sum = 3×4.0 + 4×3.3 + 3×2.0 = 12 + 13.2 + 6 = 31.2. Total credits = 10. GPA = 31.2 ÷ 10 = 3.12. That rounds to a strong B average — generally considered 'good standing' at most US colleges.
Frequently asked questions
What's a good GPA?
3.0 (B average) is the typical minimum for graduation and many scholarships. 3.5+ is competitive for grad school and selective employers. 3.7+ is honors territory. But context matters — a 3.3 in a tough engineering major beats a 3.9 in an easier one for many employers.
What's the difference between weighted and unweighted GPA?
Unweighted uses the straight 4.0 scale regardless of course difficulty. Weighted GPA (common in US high schools) bumps honors and AP courses to a 5.0 scale to reward harder coursework. College GPAs are almost always unweighted.
How do I convert percentages to GPA?
Common conversion: 93–100 = 4.0, 90–92 = 3.7, 87–89 = 3.3, 83–86 = 3.0, 80–82 = 2.7, 77–79 = 2.3, 73–76 = 2.0, 70–72 = 1.7, 67–69 = 1.3, 65–66 = 1.0, below 65 = 0. Schools vary; your registrar has the official table.
Does this work for non-US grading systems?
It uses the 4.0 scale. UK first-class (70 %+) roughly maps to 4.0, 2:1 (60–69 %) to 3.3, 2:2 (50–59 %) to 2.7. India's 10-point CGPA converts as (CGPA − 0.75) × 4 ÷ 9 for a quick approximation. WES and similar services offer official mappings for visa and admissions purposes.