IB and A-Level to GPA Calculator
Calculate a unified US GPA from a combined profile of IB subject grades and A-Level grades. Includes the mixed-qualification calculator, methodology explanation, direct IB vs A-Level grade comparison, worked examples for every common mixed-profile scenario, and guidance for US university applications with non-standard credential combinations.
IB 7 = A-Level A* = 4.0 GPA - both top grades map to the same GPA ceiling
IB 5 = A-Level B = 3.3 GPA - mid-range grades align closely across both systems
Most students hold either IB or A-Levels, but many hold both or hold IB subject certificates without a full diploma alongside A-Level results. US universities encounter these mixed profiles regularly, and this page shows how to convert every qualification into one transparent GPA average.
When and Why Students Hold Both IB and A-Level Qualifications
Mid-programme school transitions: Some students begin Year 12 on A-Levels and transfer into an IB school, or do the reverse transition. This can produce A-Level results from one school and IB subject outcomes from another.
IB subject certificates without a full diploma: Students who do not complete all diploma requirements can still receive official IB Subject Certificates with standard 1-7 subject grades.
Supplementary IB subjects alongside A-Levels: Some sixth forms and international schools allow one or two IB subjects to be taken alongside an A-Level core timetable.
Gap year and private candidate entry: Students can accumulate qualifications across both systems when sitting subjects privately before or after school transitions.
International school students in the UK: Schools that run both systems can produce legitimate mixed transcripts based on each student pathway.
IB vs A-Level Grade Equivalency - Direct Comparison
| IB Grade | IB Descriptor | IB % Range | GPA (4.0) | A-Level Grade | A-Level Descriptor | A-Level UMS % | Notes |
|---|---|---|---|---|---|---|---|
| 7 | Excellent | 80-100% | 4.0 | A* | Outstanding | 90-100% | Direct top equivalence |
| 6 | Very Good | 70-79% | 3.7 | A | Excellent | 80-89% | Strong alignment |
| 5 | Good | 60-69% | 3.3 | B | Very Good | 70-79% | Direct mid equivalence |
| 4 | Satisfactory | 50-59% | 3.0 | C | Good | 60-69% | Close alignment |
| 3 | Mediocre | 40-49% | 2.3 | D | Satisfactory | 50-59% | Below average range |
| 2 | Poor | 30-39% | 1.7 | E | Pass | 40-49% | Minimum pass zone |
| 1 | Very Poor | 0-29% | 1.0 | U | Unclassified | 0-39% | Fail equivalent |
How to Calculate a Combined IB and A-Level GPA
The unified approach: Because both systems map to the same GPA points, convert every subject grade, sum the values, and divide by total number of qualifications.
When to separate and when to combine: Most applications accept one combined GPA, but some institutions request separate by-system averages for context.
Handling TOK and EE bonus points: TOK and EE usually provide context for diploma strength but are commonly treated separately from subject-by-subject GPA averages.
Qualification count and weighting: A profile with more IB subjects is influenced more by IB results only because more IB grades are present in the average.
Reporting to US universities: Report one combined GPA in the main field and clarify the mixed qualification composition in additional information.
Combined IB and A-Level Profile GPA Reference Table
| A-Level Grades | IB Subjects | Total Qualifications | Combined GPA (4.0) | Classification | University Tier Context |
|---|---|---|---|---|---|
| A*, A | 7, 7, 7 (HL) | 5 | 3.94 | Outstanding | Ivy League competitive |
| A*, A | 7, 6, 6 | 5 | 3.82 | Excellent | Top 25 US universities |
| A, A | 7, 6, 6 | 5 | 3.76 | Excellent | Top 25-50 US universities |
| A, B | 7, 6, 5 | 5 | 3.60 | Very Good | Top 50 US universities |
| A, B | 6, 6, 5 | 5 | 3.54 | Very Good | Top 50-75 US universities |
| A*, A, A | 7, 6 | 5 | 3.82 | Excellent | Top 25 US universities |
| A, A, B | 6, 6, 5 | 6 | 3.57 | Very Good | Top 50-75 US universities |
| A, B, B | 5, 5, 5 | 6 | 3.37 | Good | Top 75-100 US universities |
| B, B, B | 6, 5, 5 | 6 | 3.37 | Good | Regional universities |
| B, B | 5, 5, 4, 4 | 6 | 3.20 | Satisfactory | Mid-tier universities |
GPA Classification Bands for Combined IB and A-Level Profiles
| GPA Band | Classification | Typical Context |
|---|---|---|
| 3.90-4.00 | Outstanding | Highly selective admissions context |
| 3.70-3.89 | Excellent | Top 10-50 range context |
| 3.50-3.69 | Very Good | Top 50-75 range context |
| 3.30-3.49 | Good | Top 75-100 / regional selective |
| 3.00-3.29 | Satisfactory | Mid-tier broad entry |
| Below 3.00 | Below Standard | Foundation or access context may apply |
Worked Examples: Combined IB and A-Level GPA Calculation
A-Level A* and A plus IB 7, 6, 5, 6 gives total 22.4 across 6 qualifications and a combined 3.73 GPA.
A-Level average is 3.85 and IB average is 3.68, creating a strong top-50 US profile with clear mixed-system context.
A, A, B plus IB SL 5 totals 14.0 across 4 qualifications, producing a combined 3.50 GPA.
TOK should typically be documented as context unless a specific evaluator includes separate GPA treatment.
Six IB subjects at 6,6,6,6,5,5 plus A-Level A* totals 25.4 across 7 qualifications and a 3.63 GPA.
The A-Level A* lifts the overall combined profile above the IB-only average and strengthens STEM positioning.
IB 5 and 4 with A-Level B and C totals 12.6 across 4 qualifications, giving a 3.15 combined GPA.
This profile remains viable for broad-entry pathways, with prerequisite checks recommended for selective health and engineering tracks.
How to Report a Mixed IB and A-Level Profile on US University Applications
Related Conversion Tools
Compare standalone workflows via IB to GPA converter and A-Level to GPA.
For tariff and percentage context, use IB to Percentage, IB to UCAS Points, A-Level to UCAS Points, A-Level to Percentage, and the UCAS Tariff Table.
Read GPA scale guide and test evaluator-style output with WES GPA calculator.