GPA Calculator

Enter courses with credits and letter grades to calculate weighted GPA and quality points.

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Enter your courses with their credit hours and letter grades to calculate a single weighted GPA on a 4.0 or 5.0 scale.

How It Works

How GPA Calculator Works

Each letter grade is converted to a standard grade point value (A/A+ = 4.0, A- = 3.7, B+ = 3.3, and so on down to F = 0.0). The calculator multiplies each course's credit hours by its grade point value to get "quality points," then adds up all quality points and divides by total credits to produce your weighted GPA.

If you select the 5.0 scale (commonly used for weighted honors or AP courses), each grade point value is boosted by one full point, capped at 5.0, before the weighted average is calculated — reflecting the extra credit typically given for higher-difficulty courses.

Courses are entered one per line as credits,grade (like 3,A or 4,B+); any line with an unrecognized grade or non-numeric credit value is simply skipped from the calculation.

Worked Example

See It In Action

Three courses — 3 credits at an A (4.0), 4 credits at a B+ (3.3), and 2 credits at an A- (3.7) — total 9 credits and 32.6 quality points, giving a weighted GPA of 3.62.

Real-World Use Cases

Who Uses GPA Calculator and Why

Calculating a current semester GPA after entering each course's credit hours and letter grade.
Checking how one specific low grade in a high-credit course will pull down the overall average compared to a low grade in a smaller elective.
Comparing a projected GPA under the 4.0 versus 5.0 scale before submitting a transcript request or application.
Working out cumulative quality points across a set of courses for a scholarship or academic standing requirement.

Common Mistakes

Mistakes to Avoid

Using the wrong scale for your school's actual system — the 5.0 scale (typically for weighting honors/AP courses) and the 4.0 scale produce different GPA numbers from the same grades, so check with your registrar before comparing results to an official transcript.
Forgetting that credit hours weight the calculation — entering credit hours incorrectly will skew the GPA even if every letter grade is right.
Not accounting for plus/minus grades correctly — this calculator follows the common convention of adding or subtracting roughly a third of a point, but some schools may weight them slightly differently.

Pro Tips

Tips for Best Results

Enter courses exactly as "credits,grade" per line to match the expected format, and double check each line before calculating.
If your target is a specific cumulative GPA, calculate quality points for planned future courses too, to see what average grade you'd need going forward.

Troubleshooting

Fixing Common Problems

My calculated GPA doesn't match my school's official transcript. — Confirm you're using the same scale (4.0 vs 5.0) your school uses, and check whether your school's plus/minus grade values match this calculator's convention — some institutions use slightly different point values.

Glossary

Terms Explained

Quality points: A course's grade point value multiplied by its credit hours, representing that course's weighted contribution to the overall GPA.

Weighted GPA: A GPA calculated by weighting each course's grade by its credit hours, rather than simply averaging all grades equally.

FAQ

Frequently Asked Questions

What is the difference between the 4.0 and 5.0 scale?

The 5.0 scale adds one extra point to each grade (capped at 5.0), which many schools use for honors, AP, or IB courses to reflect their added difficulty. Use the 4.0 scale for standard, unweighted courses.

What happens if I misspell a letter grade?

Any row with a grade the calculator doesn't recognize (like "A++" or a typo) is simply skipped and excluded from both the credit and quality point totals, so double-check your entries if the GPA looks off.

Why do credit hours matter so much?

GPA is a weighted average — a 4-credit course affects your GPA more than a 1-credit course, since each course's grade is multiplied by its own credit hours before everything is totaled and divided.

Can I calculate a cumulative GPA across multiple semesters?

Yes — just list every course from every semester as one row each; the calculator doesn't distinguish between semesters, so listing all your courses together produces a cumulative result.