GPA Calculator

Calculate semester and cumulative GPA from course credits and letter grades.

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GPA calculator for weighted course credits

Enter each course on its own line as credits,grade. HitEquals weights every letter grade by its credits, reports the semester GPA and combines it with optional prior credits for a projected cumulative GPA.

Editorial checkWeighted-average formula and grade-point mappings checked against Stanford and UCLA registrar guidance.Updated September 9, 2026Read the publication standard

Inputs used by this calculator

GPA Calculator uses the fields below. The starting values reproduce the page example; replace them with values from the same units and time period before using the result.

Field-by-field reference for GPA Calculator.
InputStarting exampleAccepted valueHow it is used
Courses — one credits,grade pair per line3,A 4,B+ 3,A-Text or a list in the format shownSupplies the courses — one credits,grade pair per line quantity used by the published equation or result breakdown.
A+ grade value4.0 scale — A+ equals 4.04.0 scale — A+ equals 4.0 · 4.3 scale — A+ equals 4.3Supplies the a+ grade value quantity used by the published equation or result breakdown.
Prior cumulative GPA3.20 to 4.3Supplies the prior cumulative gpa quantity used by the published equation or result breakdown.
Prior completed credits300 to 10000Supplies the prior completed credits quantity used by the published equation or result breakdown.
GPA Calculator calculation pathCourses — one credits,grade pair per line, A+ grade value, Prior cumulative GPA and Prior completed credits pass through the displayed GPA Calculator relationship before the main answer and supporting values are shown.1Entered values2Published formula3Checked result
GPA Calculator calculation pathCourses — one credits,grade pair per line, A+ grade value, Prior cumulative GPA and Prior completed credits pass through the displayed GPA Calculator relationship before the main answer and supporting values are shown.

How to calculate GPA

Convert each letter grade to grade points, multiply by the course credits, add the weighted points and divide by graded credits. A four-credit course therefore affects GPA twice as much as a two-credit course.

semester GPA = Σ(credits × grade points) ÷ Σ creditscumulative GPA = (prior GPA × prior credits + new grade points) ÷ all credits

Enter courses correctly

Use one course per line, with credits first and the letter grade second: 3,A-. Spaces are allowed. The calculator accepts A+ through F and up to 50 courses.

Prior GPA and credits are optional as a pair. Set prior credits to zero when you only need the current term.

Four-point and 4.3 scales

On the common 4.0 option, A and A+ both equal 4.0. The 4.3 option assigns A+ a value of 4.3. Plus and minus steps use 3.7, 3.3, 2.7 and corresponding values through D−.

This setting does not add honors or Advanced Placement weighting. If your school uses 4.5, 5.0 or percentage rules, follow its official conversion policy.

Semester versus cumulative GPA

Semester GPA covers only the courses entered now. Cumulative GPA includes prior graded work. The result panel keeps both values visible so a strong new term is not mistaken for the entire academic record.

What this estimate excludes

Pass/fail, withdrawals, incompletes, repeated-course replacement and transfer-credit policies vary. This calculator does not decide which courses belong in the denominator and cannot replace an official transcript.

What the GPA Calculator answers

Calculate semester and cumulative GPA from course credits and letter grades.

Use GPA Calculator when you know Courses — one credits,grade pair per line, A+ grade value, Prior cumulative GPA and Prior completed credits and need the relationship expressed by the published equation.

Default letter-grade values

A+ depends on the selected scale; other values remain the same.
GradePointsGradePoints
A / A+4.0 / 4.3B3.0
A−3.7B−2.7
B+3.3C+2.3
C2.0C−1.7
D+1.3D / D−1.0 / 0.7
F0.0——

Frequently asked questions

How do I find my GPA?

Multiply each grade-point value by its course credits, add those products and divide by total graded credits.

Does an A+ equal 4.0 or 4.3?

Both systems exist. Select the rule used by your school and verify it with the registrar.

Do course credits affect GPA?

Yes. More-credit courses carry more weight in the weighted average.

Can I include my previous GPA?

Yes. Enter both prior cumulative GPA and prior completed credits to combine them with the new term.

Is this my official GPA?

No. Official calculations depend on institution-specific policies for eligible courses, repeats and non-letter grades.

What question does this GPA Calculator answer?

Calculate semester and cumulative GPA from course credits and letter grades.

What to keep in mind

Schools set their own grade values and rules for repeats, pass/fail and transfer work. Confirm the result against your registrar's policy.

Results are rounded for display in US format, with money in dollars and cents; CSV exports keep full calculation precision. This is a calculation summary, not an official certificate.

Sources and references

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