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GPA calculator

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Calculate a credit-weighted GPA on a 4.3 or 4.0 scale.

The GPA calculator takes a list of courses with credits and letter grades, converts each grade to grade points on either a 4.3 or 4.0 scale, and computes GPA as Σ(credits × grade point) ÷ Σcredits — with total credits and quality points shown alongside.

Total credits

6

Quality points

21.90

GPA

3.65

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How to use

  1. Add a row per course with its credits and letter grade.
  2. Switch between the 4.3 and 4.0 scales — only A+ differs between them (4.3 vs 4.0); every other grade is the same.
  3. GPA = Σ(credits × grade point) ÷ Σcredits.

Common use scenarios

  • Calculating a term or cumulative GPA from a course list.
  • Checking how a specific course's grade affects overall GPA.
  • Converting a GPA between the 4.3 and 4.0 scales for a transcript or application.
  • Projecting a future GPA by adding hypothetical course grades.

✓Content & verification reviewed: 2026-08-25

How we verify GPA calculator

How to confirm the calculated GPA matches your actual transcript logic.

Only A+ differs between the 4.3 and 4.0 scales

Switching scales changes A+ from 4.3 to 4.0 grade points; every other letter grade maps to the same grade point value on both scales — so if you don't have any A+ grades in your list, switching scales won't change your calculated GPA at all.

Zero or negative credits are ignored, with a notice — blank credits are ignored silently

A row with 0 or negative credits is excluded from the calculation and flagged with a notice so you know it happened; a row with a blank credits field is also excluded, but without a separate notice — check that every course row has its credits filled in correctly.

GPA shows "--" rather than 0 when there's nothing to calculate

If no row has valid positive credits, the tool displays "--" instead of a misleading 0.00, since a GPA of zero would look like a real (very low) result rather than "no data."

Before you rely on the result

  • You've selected the scale (4.3 or 4.0) that matches your school's actual grading system.
  • Every course row has its credits filled in — a blank credits field is silently skipped.
  • You've checked the notice for any rows with 0 or negative credits that got excluded.
  • If GPA shows "--", you've confirmed at least one row has valid positive credits.

Who this is for

  • Students calculating a term or cumulative GPA from their course list.
  • Anyone checking how a specific course's grade affects overall GPA.
  • People converting a GPA between the 4.3 and 4.0 scales for an application.
  • Students projecting a future GPA with hypothetical grades.

Real-world examples

End-of-term GPA calculation

A student enters every course from the term with its credits and final letter grade to calculate the term GPA before it appears on their transcript.

Scale conversion for an application

A student applying somewhere that expects a 4.0-scale GPA enters their courses and switches from the 4.3 to the 4.0 scale to get the converted figure.

Projecting next term's impact

A student wanting to know how a rough grade would affect their cumulative GPA adds a hypothetical course row alongside their real courses to see the projected effect.

Limitations

  • Rows with a blank credits field are silently skipped; rows with 0 or negative credits are skipped too, but shown as a notice.
  • GPA shows "--" (not 0) when there are no valid rows to calculate from.

Frequently asked questions

What's actually different between the 4.3 and 4.0 scales?

Only the A+ grade point value changes — 4.3 on one scale and 4.0 on the other. Every other letter grade has the same grade point value on both scales.

What happens if I leave a course's credits blank?

That row is silently skipped and doesn't count toward the GPA — make sure every course you want included has a credits value entered.

Why does a course show up in a notice instead of just being calculated?

Rows with 0 or negative credits are excluded and specifically flagged with a notice, since that's different from a blank field and worth double-checking wasn't a data-entry mistake.

Why does GPA show "--" instead of a number?

That means no row currently has valid positive credits to calculate from — add at least one course with a positive credits value and a letter grade.

🔒 Runs in your browser — nothing is uploaded. Results are for reference only; see the disclaimer. Last updated: 2026-08-25

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