GPA Calculator (4.0 Scale)
Compute your semester GPA from letter grades and credit hours. Enter grades as letters (A, B+, C−…) or as grade points (4, 3.3…) — the calculator weights each by its credits and shows the working.
How to use this calculator
- Enter your grades in order, separated by commas — letters or grade points both work.
- Enter the matching credit hours in the same order (or leave empty for equal weights).
- Press Calculate — the quality-points working is shown so you can verify against your transcript.
Formula used
Each course contributes quality points (its grade value times its credits). The standard 4.0 mapping: 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.
Example calculation
Grades A, B+, A−, B, C+ with credits 3, 4, 3, 3, 2:
Quality points = 4.0×3 + 3.3×4 + 3.7×3 + 3.0×3 + 2.3×2 = 12 + 13.2 + 11.1 + 9 + 4.6 = 49.9. GPA = 49.9 ÷ 15 = 3.33.
How GPA works
GPA is a credit-weighted average: a 4-credit course moves your GPA a third more than a 3-credit one, which is why an A in a heavy course helps more than in a light elective. Universities compute it identically — grade values times credits, summed, divided by total credits.
Scales vary at the edges: many US schools cap at 4.0 (A and A+ both 4.0), some award 4.3 for A+, and other countries use 5-, 7- or 10-point systems entirely. Always confirm the mapping your institution publishes before comparing numbers.
Why use this calculator?
- Check your transcript math before grades become official.
- Model scenarios — see what this semester's likely grades do to your GPA.
- Understand credit weighting, the part of GPA most students miscalculate.
Frequently asked questions
What GPA is an A average?
A straight-A record is a 4.0 (or higher where A+ counts 4.3). A mix of A and A− lands around 3.8–3.9. Most honors cutoffs sit at 3.5 (cum laude territory) and 3.7+.
Do pass/fail courses count in GPA?
Usually not — a Pass earns credits but no grade points, so it's excluded from the GPA average. A Fail often does count as 0. Rules differ by institution, so check your registrar's policy.
Is a 3.3 GPA good?
A 3.3 is a B+ average — solidly above the typical US college mean (~3.1) and above many graduate school minimums (3.0). Competitiveness depends on context: top programs often expect 3.7+.