High School GPA Calculator
Calculate weighted or unweighted high school GPA from course grades and credits — US-style 4.0 / 5.0 scales.
University GPA: GPA calculator. Australia ATAR: ATAR to GPA calculator.
What This Calculator Does
Computes US-style high school GPA from course grades and credit weights, with optional +1.0 weighted bump for honours/AP-style rigour (capped at 5.0). Australian students more often hold ATAR — this tool serves dual citizens, US transfer applicants, and Uni students preparing US exchange or graduate school packets.
Toggle unweighted (4.0 cap) vs weighted (5.0 cap) before interpreting results for Common App or NCAA eligibility contexts.
- Letter-grade points: A=4.0 through F=0.0 with intermediate +/- values.
- Per-course credit weighting (typically 0.5–1.0 per semester course).
- Separate from the university GPA — different scale and purpose.
How the Calculation Works
Unweighted: GPA = Σ(grade points × credits) ÷ Σ(credits), max 4.0 per course. Weighted: each course gets min(grade points + 1, 5) before the same weighted average — modelling common US honours/AP bumps.
District policies vary (+0.5 vs +1.0, which courses qualify). Treat output as orientation; official transcripts from your registrar override calculator results.
| Mode | A grade | AP/honours A | Scale max |
|---|---|---|---|
| Unweighted | 4.0 | 4.0 | 4.0 |
| Weighted (+1) | 4.0 | 5.0 | 5.0 |
| Weighted (+1) | B (3.0) | 4.0 | 5.0 |
When Students Should Use This Calculator
Use when a US institution requests unweighted or weighted high school GPA and you need a draft before ordering official transcripts. Uni-enrolled students rarely need high school GPA except for US grad school or exchange applications referencing secondary performance.
Switch to university GPA calculators once you have Uni WES results — post-secondary GPA matters more for most programs.
- US undergraduate transfer applications while still in Year 12.
- Uni students applying to US summer programs citing HS performance.
- Comparing US cousin's GPA reporting format to your ATAR for family planning conversations.
Step-by-Step Guide
Follow this workflow each time you use the tool so your inputs match WES or your unit guide.
- Choose unweighted or weighted mode matching your target application guidance.
- Add one row per course with letter grade and credit weight.
- Include only grades that appear on official high school transcripts.
- Read computed GPA and note scale maximum (4.0 or 5.0).
- Order registrar-sealed transcripts before final submission — calculator is draft only.
Practical Examples
Worked scenarios below use realistic Uni-style marks and credit loads. Enter the same values in the calculator to verify.
Standard unweighted senior year
Five courses: A, A−, B+, B, A with 1 credit each. Points: 4+3.7+3.3+3+4 = 18 ÷ 5 = 3.600 unweighted GPA.
| Course | Grade | Points | Credits |
|---|---|---|---|
| English | A | 4.0 | 1 |
| Calculus | A− | 3.7 | 1 |
| Chemistry | B+ | 3.3 | 1 |
| History | B | 3.0 | 1 |
| PE | A | 4.0 | 1 |
Weighted with two AP courses
Three standard + two AP As: unweighted 4.0 average; weighted uses 5.0 for AP rows → GPA above 4.0 on weighted scale.
Mixed B student unweighted
Six courses averaging B (3.0) → 3.000 unweighted. US state college minimums often near 2.5–3.0 — competitive schools want higher.
Credit-heavy semester
Two 1.0-credit courses at A and four 0.5-credit at B: (4+4+1.5×4) ÷ 4 = 3.500 — higher-credit As pull average up.
Uni student drafting US grad school supplement
HS weighted GPA 4.2/5.0 from junior year; Uni CGPA 3.4/4.0 from WES. Application receives both — HS GPA contextualises pre-university rigour only.
Common Mistakes Students Make
- Submitting calculator GPA when application requires official registrar figure.
- Applying weighted bumps to standard courses not designated honours/AP.
- Confusing US high school 5.0 weighted with Australian 7.0 university scale.
- Using Uni unit grades in the high school GPA row format.
Tips to Improve Academic Performance
- Save both weighted and unweighted figures — colleges ask for different variants.
- After Uni enrolment, lead with WES CGPA on almost all forms.
- Check whether target US school recalculates GPA internally anyway.
- Keep PDF transcripts — calculator assumptions may not match school policy.
Important Notes About the university Policies
Not official Uni policy. Uni does not collect or store US high school GPA for standard domestic entry. International offices may review US transcripts holistically without a single GPA cutoff.
Once enrolled, Uni students should use WAM and official CGPA for all Uni-related merit, honours, and employment reporting.
US-Style High School GPA
American high schools often report GPA from course credits and letter grades, sometimes with "weighted" bumps for Advanced Placement or honours subjects (up to 5.0 on a 4.0 scale). Australian secondary students typically receive ATAR instead — this calculator serves international students, dual-citizens, and Uni students comparing US application requirements.
Enter course name, letter grade, credit weight, and whether the course is weighted. The tool computes unweighted and weighted GPA using common US conventions — verify against your school's exact policy if applying domestically in the US.
Weighted vs Unweighted
Weighted GPA rewards rigour but caps vary by district — some schools use +0.5 instead of +1.0. Use this output for orientation; attach official school transcripts for applications.
| Course type | Grade | Unweighted GP | Weighted bump |
|---|---|---|---|
| Standard | A | 4.0 | — |
| Honours/AP | A | 4.0 | +1.0 → 5.0 cap |
| Standard | B | 3.0 | — |
| Honours/AP | B | 3.0 | +1.0 → 4.0 |
Australian Context
Once at Uni, track WAM and official CGPA on WES — high school GPA rarely appears on Australian employment forms.
- Uni entry uses ATAR/IB/diploma pathways — not high school GPA.
- US exchange or grad school may request US-style GPA — use this tool, then verify with registrar.
- University GPA uses different scales — switch to Uni GPA calculators after enrolment.
- Browse pathways articles for Uni orientation and adjustment tips.
More Uni Calculators
Free planning tools built for Uni coursework — no signup required.
WAM to GPA Calculator
Convert overall WAM to 4.0 and 7.0 GPA bands.
Open toolWAM to 4.0 GPA Calculator
Map WAM to the US-style 4.0 GPA scale.
Open toolWAM to 7.0 GPA Calculator
Map WAM to the Australian 7-point GPA scale.
Open toolWAM to CGPA Calculator
Estimate cumulative 4.0 CGPA band from overall WAM.
Open toolGPA to WAM Calculator
Estimate WAM range from 4.0 or 7.0 GPA.
Open tool4.0 GPA to WAM Calculator
Convert 4.0 GPA to approximate WAM ranges.
Open toolFrequently Asked Questions
How do I calculate high school GPA?
GPA = sum(grade points × course credits) ÷ sum(credits). Enter each course letter grade and credit weight.
Weighted vs unweighted GPA?
Unweighted caps at 4.0. Weighted adds +1.0 for honors/AP-style courses (capped at 5.0) for US-style reporting.
Australian high school?
Australian schools typically use ATAR, not GPA. This tool suits US-style transcripts and international applications.
What is a good high school GPA?
US context: 3.5+ is strong; 4.0 unweighted is excellent. Requirements vary by college.
University GPA?
Use the GPA calculator or Uni GPA calculator for uni unit grades on the 4.0 scale.
Convert to WAM?
University conversion uses different scales — use GPA to WAM after you start uni.