IB to GPA Converter
Convert International Baccalaureate Scores to Grade Point Average
🎓 Interactive IB to GPA Calculator
📊 Your Results:
Unweighted GPA
Weighted GPA
Total IB Points
📚 What is IB to GPA Conversion?
The IB to GPA conversion is the process of translating International Baccalaureate Diploma Programme scores (graded on a 1-7 scale) into the Grade Point Average system (typically on a 4.0 scale) commonly used by universities in the United States and Canada. This conversion is essential for IB students applying to North American universities, as admissions offices require GPA equivalents to evaluate academic performance alongside other applicants.
The IB Diploma Programme awards scores from 1 (lowest) to 7 (highest) for each of six subjects, with students taking three Higher Level (HL) and three Standard Level (SL) courses. Additionally, students can earn up to 3 bonus points from the Extended Essay (EE) and Theory of Knowledge (TOK), bringing the maximum total to 45 points. The conversion to GPA requires mapping these scores to the 4.0 scale using established equivalency tables.
⚠️ Important Note: The IB Organization does not provide an official conversion table. Different universities may use slightly different scales. Always verify with your target institution's admissions office for their specific conversion policy.
📊 IB to GPA Conversion Tables
Unweighted GPA Conversion (4.0 Scale)
IB Score | GPA Equivalent | Letter Grade | Achievement Level |
---|---|---|---|
7 | 4.0 | A+ | Excellent |
6 | 3.7 | A | Very Good |
5 | 3.0 - 3.3 | B / B+ | Good |
4 | 2.3 - 3.0 | B- / C+ | Satisfactory |
3 | 1.7 - 2.0 | C | Mediocre |
2 | 1.0 | D | Poor |
1 | 0.0 | F | Very Poor |
Total IB Points to GPA Conversion
Total IB Points | Estimated GPA Range | Academic Standing |
---|---|---|
42-45 | 3.9 - 4.0 | Exceptional (Ivy League Range) |
38-41 | 3.7 - 3.9 | Excellent (Top Universities) |
34-37 | 3.4 - 3.6 | Very Good (Competitive Universities) |
30-33 | 3.0 - 3.3 | Good (Most State Universities) |
24-29 | 2.5 - 2.9 | Satisfactory |
Below 24 | Below 2.5 | Below Average |
⚖️ Weighted vs. Unweighted GPA
📘 Unweighted GPA
Treats all courses equally regardless of difficulty level. Maximum value is 4.0.
Calculation: Each IB score is directly converted to the 4.0 scale without adjustments for HL or SL designation.
📗 Weighted GPA
Accounts for course difficulty. Higher Level (HL) courses receive bonus points (typically +0.5 to +1.0). Can exceed 4.0.
Calculation: Base GPA value + bonus for HL courses, reflecting the increased rigor of advanced coursework.
🔢 How to Calculate IB to GPA
Step-by-Step Calculation Method
Step 1: List all six IB subject scores (1-7 scale)
Step 2: Convert each IB score to its GPA equivalent using the conversion table
Step 3: For weighted GPA, add bonus points for HL courses (typically +0.5)
Step 4: Sum all converted GPA values
Step 5: Divide by the total number of subjects (6) to get average GPA
Mathematical Formula
Unweighted GPA Formula:
Weighted GPA Formula:
Example Calculation
Sample IB Scores:
- English A HL: 6 → 3.7 GPA (Weighted: 3.7 + 0.5 = 4.2)
- Spanish B SL: 7 → 4.0 GPA (Weighted: 4.0)
- History HL: 5 → 3.3 GPA (Weighted: 3.3 + 0.5 = 3.8)
- Biology HL: 6 → 3.7 GPA (Weighted: 3.7 + 0.5 = 4.2)
- Mathematics SL: 5 → 3.3 GPA (Weighted: 3.3)
- Visual Arts SL: 4 → 2.7 GPA (Weighted: 2.7)
Results:
Unweighted GPA: (3.7 + 4.0 + 3.3 + 3.7 + 3.3 + 2.7) ÷ 6 = 3.45
Weighted GPA: (4.2 + 4.0 + 3.8 + 4.2 + 3.3 + 2.7) ÷ 6 = 3.70
Total IB Points: 33 + 2 (TOK/EE) = 35 points
💡 Key Facts About IB and GPA
📈 Average IB Score
The global average IB Diploma score in 2025 was 30.58 points, corresponding to approximately a 3.0-3.2 GPA.
🎯 Passing Score
To earn the IB Diploma, students must achieve a minimum of 24 points out of 45, equivalent to approximately a 2.5 GPA.
🏆 Top Performer Range
Students scoring 40+ points are considered exceptional performers, with GPAs of 3.8-4.0, qualifying for top-tier universities.
🌍 Global Recognition
IB Diplomas are recognized by over 5,000 universities in more than 100 countries, with most US universities accepting IB scores.
📚 HL vs. SL Credits
Many US universities grant college credits for HL subjects with scores of 5-7, potentially saving students time and tuition costs.
⚠️ No Official Scale
The IB Organization does not provide an official conversion scale. Universities develop their own internal policies for evaluation.
🎓 How Universities Evaluate IB Scores
Universities in the United States and Canada recognize the rigor of the IB Diploma Programme and have developed sophisticated evaluation methods that go beyond simple GPA conversion. Admissions officers are trained to understand the IB grading system and typically benchmark applicants against other IB students rather than treating converted GPAs as absolute values.
Factors Universities Consider:
- Total IB Diploma Score: The combined score out of 45 points is often more important than individual subject grades
- HL Course Selection: Taking challenging HL subjects in relevant fields demonstrates academic commitment
- Subject-Specific Scores: Performance in subjects related to intended major carries significant weight
- TOK and Extended Essay: Strong performance demonstrates critical thinking and research capabilities
- Predicted vs. Final Scores: Most applications are submitted with predicted grades; offers may be conditional on final results
- Course Rigor: IB students are recognized for completing one of the most demanding pre-university programs
🏛️ Ivy League and Top Universities
Most admitted students to Ivy League universities have IB scores of 40-45 points, equivalent to a 4.0 GPA. However, admissions are holistic, considering extracurriculars, essays, and recommendations alongside academic performance.
Universities such as Harvard, Yale, Princeton, and Stanford explicitly recognize IB rigor and do not require GPA conversion when official IB transcripts are provided.
✅ Tips for IB Students Applying to US Universities
- Submit Official IB Transcripts: Always provide official transcripts directly from your school or IB coordinator
- Check University-Specific Policies: Each institution may have different conversion scales or minimum score requirements
- Highlight Your HL Subjects: Emphasize challenging HL courses relevant to your intended major in applications
- Report Both Weighted and Unweighted GPA: When self-reporting, provide both calculations if the application allows
- Include TOK/EE Context: Explain your Extended Essay topic and TOK performance in personal statements when relevant
- Use Predicted Scores Strategically: Work with your IB coordinator to ensure predicted scores accurately reflect your abilities
- Leverage College Credit Opportunities: Research which universities offer advanced standing or course credits for high HL scores
- Don't Rely Solely on GPA Conversion: Focus on achieving strong IB scores rather than obsessing over GPA equivalents
❓ Frequently Asked Questions
Is there an official IB to GPA conversion?
No, the International Baccalaureate Organization does not provide an official conversion scale. Universities develop their own internal evaluation systems, which is why conversion scales can vary between institutions.
Do TOK and EE bonus points count in GPA conversion?
TOK and Extended Essay bonus points (0-3) contribute to your total IB Diploma score but are typically not directly factored into GPA calculations, which focus on the six subject scores. However, strong performance in these areas enhances your overall academic profile.
Should I report weighted or unweighted GPA?
Report the GPA type requested by the university's application form. If both options are available, reporting both weighted and unweighted GPAs provides a more complete picture. Weighted GPA showcases the rigor of HL courses.
What is considered a good IB score for US universities?
For competitive universities: 34-37 points (GPA 3.4-3.6). For top-tier universities: 38-41 points (GPA 3.7-3.9). For Ivy League and elite institutions: 40-45 points (GPA 3.9-4.0). However, admissions are holistic and consider many factors beyond scores.
Can I get college credit for my IB scores?
Yes! Many US universities grant college credits for Higher Level subjects with scores of 5, 6, or 7. Policies vary by institution, but students can potentially save a full year of college coursework and tuition. Check with specific universities for their IB credit policies.
How do universities view IB compared to AP or A-Levels?
US universities recognize IB, AP, and A-Levels as rigorous pre-university programs. The IB Diploma is often viewed favorably because it requires a broad, balanced curriculum across six subjects plus the core components (TOK, EE, CAS), demonstrating well-rounded academic preparation.
⚠️ Important Disclaimer
The GPA conversions provided on this page are estimates based on commonly used scales by US and Canadian universities. Since the IB Organization does not provide an official conversion table, different institutions may use varying conversion methods.
Always verify with your target universities regarding their specific IB score evaluation policies. Admissions offices can provide the most accurate information about how they interpret IB grades in the context of their admissions process.
This calculator is provided for informational and planning purposes only and should not be considered official university admissions guidance.
👨🏫 About the Author
Adam Kumar
Co-Founder @ RevisionTown
Adam is a mathematics education expert specializing in various international curricula including IB (International Baccalaureate), AP (Advanced Placement), GCSE, IGCSE, and more. With extensive experience in curriculum development and student guidance, Adam helps students navigate complex academic systems and achieve their educational goals.
📧 Email: info@revisiontown.com
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