GPA Calculator

What this GPA calculator is for

This page helps you compute a grade point average from letter grades and credit hours using a standard 4.0 scale. Whether you are tracking a single semester, estimating cumulative GPA after midterms, or sanity-checking transfer credits, a reliable GPA calculator saves time before you log into your student portal.

How GPA is calculated

Grade point average is a weighted mean: each course's letter grade converts to grade points (A = 4.0, B = 3.0, and so on), multiplied by that course's credit hours. Sum those products, divide by total credits, and you have your GPA. Courses with zero credits are excluded because they carry no weight in the average.

Most U.S. colleges use a 4.0 unweighted scale for standard courses. Honors, AP, or IB courses may receive extra weight at the high-school level, but many universities recalculate on an unweighted basis for admissions—always verify your institution's policy.

Letter grade to grade point scale

• 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+: 1.3  ·  D: 1.0  ·  F: 0.0

Some schools omit A+ or treat plus/minus differently. If your transcript uses a variant table, adjust inputs to match your registrar's published scale.

Cumulative vs semester GPA

Semester GPA covers one term's courses only. Cumulative GPA includes all graded work to date. To update cumulative GPA, enter every course that counts toward your total credits—not just the current semester. Pass/fail, audit, and incomplete grades are typically excluded; check your handbook.

Planning your grades strategically

If you know your current GPA and want to hit a target by semester end, work backward: estimate how many credits remain and what average you need on those credits. For a single course's final-exam math—"what score do I need on the final?"—use the final grade calculator. For quick fraction and ratio work, the percentage calculator handles percent-of and percent-change problems.

AP and standardized exam context

High-school GPA often sits alongside AP exam planning. If you are modeling AP U.S. History or AP Chemistry score bands alongside your transcript, see the APUSH score calculator and AP Chem score calculator for section-weighted estimates—separate from GPA but useful in the same academic planning session.

Common mistakes to avoid

• Mixing quarter and semester credit systems without converting hours.
• Including withdrawn (W) or incomplete (I) courses as if they were graded F.
• Applying high-school weighted multipliers when your college recalculates unweighted.
• Rounding intermediate steps differently than the registrar (round only the final GPA display).

Worked example

Suppose you earned an A (4.0) in a 4-credit course, a B+ (3.3) in a 3-credit course, and a B (3.0) in another 3-credit course. Total quality points = (4.0 × 4) + (3.3 × 3) + (3.0 × 3) = 16 + 9.9 + 9 = 34.9. Total credits = 10. GPA = 34.9 ÷ 10 = 3.49. Enter those three rows in the calculator above to confirm. If you later retake a course, ask whether your school replaces the old grade or averages both attempts—policy changes the cumulative figure the registrar publishes.

Scholarships, probation, and transfer thresholds

Many merit scholarships require a minimum cumulative GPA (often 3.0 or 3.5). Academic probation triggers at a lower floor—frequently 2.0 for undergraduates. Use this tool mid-semester to see whether one weak course materially moves the average. Transfer applicants should calculate GPA on the exact credit hours the receiving institution will accept; some schools exclude developmental or repeated courses from the transfer evaluation even if they appear on your sending transcript.

Disclaimer

Educational planning only. Official GPA appears on your transcript and may differ due to grade replacement policies, academic forgiveness, or institutional rounding rules. Confirm results with your academic advisor or registrar.