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gpa-calculator

A GPA calculator computes a Grade Point Average by converting letter grades (A, A-, B+ …) into numeric grade points, weighting each course by its credit hours, and dividing the total weighted points by total credit hours, producing a single number that summarises academic performance across a semester or an entire degree. The ZTools GPA Calculator runs entirely in the browser, supports the standard US 4.0 scale, the 4.3 scale (with A+ = 4.3), and the 5.0 weighted scale used for AP / honors / IB courses, lets you mix course rows freely, and instantly recomputes both semester GPA and cumulative GPA when you change any grade or credit value — handy before submitting course choices, applying for scholarships, or planning the grades needed in remaining semesters to hit a target.

Use cases​

Mid-semester check-in​

Plug in current grades partway through a term to see whether the on-track GPA matches the target needed for honors, scholarships, or graduate-school applications. Adjust study priorities accordingly.

Cumulative tracking across semesters​

Add prior-semester GPA + total credits, then layer the new semester to get an updated cumulative figure without manually re-summing every course since freshman year.

Scholarship eligibility planning​

Many scholarships require a 3.5 or 3.7 minimum. Run "what-if" scenarios — what grades do I need this semester to maintain the threshold? — before drop / add deadlines pass.

Pre-application transcript review​

Graduate / professional school applications often quote a specific GPA scale. Recompute on the school's scale (e.g. last 60 credits, major-only) before submitting to avoid surprises.

How it works​

  1. Pick the GPA scale — US 4.0 (most common), 4.3 (with A+ = 4.3), or 5.0 weighted (AP / honors / IB get +1.0).
  2. Add a row per course — Course name (optional), letter grade, credit hours (usually 1, 2, 3, or 4).
  3. Compute weighted sum — For each course: grade points × credit hours. Sum across all courses.
  4. Divide by total credits — Sum of weighted points ÷ sum of credit hours = GPA, rounded to 2 decimals.
  5. Add prior cumulative (optional) — Enter prior cumulative GPA + total credits earned so far; calculator blends new semester into a fresh cumulative figure.

Examples​

Input: A (3 credits), B+ (3 credits), B (4 credits), A- (3 credits)

Output: Semester GPA = (4.0×3 + 3.3×3 + 3.0×4 + 3.7×3) / 13 = 3.46

Input: Prior cumulative 3.40 over 60 credits + new semester 3.80 over 15 credits

Output: New cumulative ≈ 3.48

Input: AP Physics A (5.0 scale, 4 credits) + B in regular English (3 credits)

Output: (5.0×4 + 3.0×3) / 7 ≈ 4.14 (weighted)

Frequently asked questions​

What is the standard 4.0 scale?

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. The 4.3 scale adds A+ = 4.3.

Why does my school use a different scale?

Some institutions use 5.0 (weighted for AP / honors), 10.0 (some Indian universities), or percentage-based GPA. Pick the scale on the calculator that matches your transcript.

What is a "good" GPA?

3.5+ is generally considered strong for graduate-school applications; 3.7+ is competitive at top programs. Scholarship thresholds commonly sit at 3.0, 3.3, or 3.5.

How are pass / fail courses handled?

Most schools exclude P / F courses from GPA but still count credits toward graduation. Leave them off the calculator unless your school converts P to a numeric value.

Are repeated courses included?

Policies differ. Some schools replace the original grade entirely; others average both attempts. Check the registrar; the calculator simply uses whatever rows you enter.

How is GPA different from CGPA?

GPA usually refers to a single semester or term; CGPA (Cumulative GPA) is the running average across all semesters completed.

Tips​

  • Track GPA every term — small dips compound into a hard-to-recover cumulative average.
  • For grad-school apps, also compute "major GPA" (only courses in your major) and "last 60 credits GPA" — many programs weigh these heavily.
  • Use what-if mode before drop / withdrawal deadlines — see whether dropping a struggling course actually helps the cumulative.
  • Scholarship cutoffs are usually applied to cumulative, not semester, GPA. Plan for that distinction.
  • Save a screenshot or export each semester's calculation; you'll thank yourself when transcripts disagree at graduation audit time.

Try it now​

The full gpa-calculator runs in your browser at https://ztools.zaions.com/gpa-calculator — no signup, no upload, no data leaves your device.

Open the tool ↗

Last updated: 2026-05-05 · Author: Ahsan Mahmood · Edit this page on GitHub