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GPA Calculator

Your grade point average from letter grades and credit hours — weighted, unweighted and cumulative.

Runs in your browser Free, no sign-up Updated 2026-08-21

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How GPA is calculated

Grade point averageGPA = Σ(grade points × credit hours) ÷ Σcredit hours

Each letter grade converts to a number of grade points, which is multiplied by the course's credit hours to give quality points. Total quality points divided by total credits gives the GPA. Credit weighting is what makes a four-credit course count more than a one-credit elective — a distinction that matters far more than students expect.

Standard US 4.0 scale
GradePointsGradePoints
A / A+4.0C2.0
A−3.7C−1.7
B+3.3D+1.3
B3.0D1.0
B−2.7D−0.7
C+2.3F0.0

Weighted vs. unweighted GPA

Unweighted GPA caps at 4.0 and treats every course identically. Weighted GPA adds a bonus for advanced courses — typically +1.0 for AP or IB and +0.5 for honours — so a maximum of 5.0 becomes possible.

College admissions offices are well aware that weighting schemes differ wildly between schools, so most of them recalculate GPA using their own formula. What they are really reading is course rigour alongside grades: an unweighted 3.8 with four AP classes is usually read more favourably than a weighted 4.3 built from easy electives.

Raising a GPA is arithmetic, not magic

The uncomfortable truth is that GPA becomes harder to move as credits accumulate, because each new term is a smaller share of the total. After 90 credits at 2.8, a perfect 4.0 term of 15 credits lifts you only to about 2.97.

  • Front-load effort. Early grades have the longest time to be diluted, but they also anchor the average for years.
  • Credit hours are leverage. A strong grade in a 4-credit course moves your GPA more than the same grade in a 1-credit one.
  • Check the retake policy. Many institutions replace rather than average a repeated grade, which is the single most effective repair available.
  • Watch pass/fail. Passed credits usually count toward graduation but not toward GPA, which cuts both ways.

Frequently asked questions

Do pass/fail courses affect my GPA?

At most institutions a passed course counts toward the credits you need to graduate but is left out of the GPA calculation entirely. A failed pass/fail course, however, often does count as an F. Check your institution's policy before opting in — the asymmetry catches people out.

How much can one bad grade hurt?

It depends on how many credits you have already accumulated. In your first term a single low grade moves the average a lot; after 90 credits the same grade barely registers. Enter your previous cumulative GPA and credits above to see the exact effect rather than guessing.

How do I calculate my GPA?

Multiply each course's grade points by its credit hours, add those products, and divide by the total credit hours. Enter your grades above in the form “A 3, B+ 4” and it is calculated for you.

What is a good GPA?

On the 4.0 scale, 3.0 is generally considered solid, 3.5 and above is strong and typically qualifies for honours, and 3.7 or higher is competitive for selective graduate programmes. Standards vary by field and institution.

What is the difference between weighted and unweighted GPA?

Unweighted GPA caps at 4.0 and treats all courses equally. Weighted GPA adds points for advanced courses — usually +1.0 for AP or IB — allowing totals above 4.0. Colleges frequently recalculate both using their own scale.

Does an A+ count as more than 4.0?

At most institutions, no — A+ and A both convert to 4.0. A minority award 4.3 for an A+, which is why some students report a GPA slightly above 4.0 on an unweighted scale.

How do I calculate cumulative GPA?

Enter your previous cumulative GPA and the credits it covers in the fields above. The calculator combines your previous quality points with the current term's to produce the new cumulative figure.

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