Quick Answer
A GPA scale is a standardized system that converts letter grades into numerical values. The most common is the 4.0 scale used in the US and Canada: A=4.0, B=3.0, C=2.0, D=1.0, F=0.0, with plus/minus grades in between.
Other systems in use: 5.0 weighted (US high schools, for AP/IB/Honors), 7.0 (Australia), 10.0 (India, Bangladesh), and honours classifications (UK).
This page is the reference for every scale, every grade-to-point conversion, and how to read a transcript that uses a scale you’re not familiar with.
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The 4.0 Scale (Unweighted)
The 4.0 scale is the standard US and Canadian grading system. It is called unweighted because every course is treated equally — an A in a physics class and an A in a PE elective both earn 4.0 grade points.
Here is the complete conversion table, including plus/minus grades. Not every institution awards all of these — some don’t use plus/minus at all, and some cap the top at 4.0 even for an A+ — but this is the full range used across US colleges and universities.
| Letter Grade | Grade Points | Performance |
|---|---|---|
| A | 4.0 | Excellent |
| A− | 3.7 | Excellent |
| B+ | 3.3 | Very Good |
| B | 3.0 | Good |
| B− | 2.7 | Good |
| C+ | 2.3 | Satisfactory |
| C | 2.0 | Satisfactory |
| C− | 1.7 | Below Average |
| D+ | 1.3 | Minimum Passing |
| D | 1.0 | Minimum Passing |
| D− | 0.7 | Minimum Passing |
| F | 0.0 | Fail |
Watch out for plus/minus: this detail alone can change your GPA. A student earning straight A− grades has a 4.0 at a school that doesn’t award plus/minus, but only a 3.7 at a school that does. Same performance, different number. Always check whether your institution awards plus/minus.
The Weighted 5.0 Scale
Many US high schools use a weighted scale that adds +1.0 point for AP, IB, and Honors courses. The underlying grade-to-point mapping doesn’t change — the weighting is added on top of the standard 4.0 value.
The table below shows how the weighting works. Note that the pattern is a fixed +1.0 for weighted courses, not a redefinition of each letter grade:
| Letter Grade | Standard Course | Weighted (AP/IB/Honors) |
|---|---|---|
| A | 4.0 | 5.0 |
| A− | 3.7 | 4.7 |
| B+ | 3.3 | 4.3 |
| B | 3.0 | 4.0 |
| C | 2.0 | 3.0 |
| F | 0.0 | 0.0 |
An important consequence: a B in an AP course earns 4.0 weighted points — the same as an A in a standard course. This is why weighted GPAs can exceed 4.0, and why colleges look at both weighted and unweighted figures together. Course rigor matters, but a B in AP is not equivalent to an A in regular work. For a full comparison, see Weighted vs Unweighted GPA.
International Scales at a Glance
The 4.0 scale is common in the US and Canada, but most other countries use their own system. These are the four you are most likely to encounter:
| Country / System | Grading Format | Top Grade | Details Page |
|---|---|---|---|
| Australia / New Zealand | Grade descriptors: HD, D, C, P, F on a 7.0 scale | HD = 7.0 | Australia guide → |
| India / Bangladesh | 10-point CGPA or percentage | 10.0 or 100% | India guide → |
| United Kingdom | Honours classification: First, 2:1, 2:2, Third | First Class (70%+) | UK guide → |
| Germany | Reverse numerical scale, 1.0 to 5.0 (lower is better) | 1.0 | Germany guide → |
Each country has its own detailed guide on LearnViaHub. For a wider survey including France, Italy, Spain, Sweden, Japan, South Korea, China, Brazil, Mexico, Nigeria, Nepal, and more, see GPA Around the World.
Which Scale Do You Need?
For most US applications, the 4.0 unweighted scale is what’s asked for. But different goals come with different thresholds. Here are the general benchmarks on the 4.0 scale:
| Goal | Typical Minimum | Notes |
|---|---|---|
| Most graduate programs | 3.0 | Common baseline for consideration; not a guarantee of admission |
| Law school | 3.0+ | Same general baseline; LSAT and application quality matter alongside GPA |
| Medical school | 3.5+ | This is a minimum, not a competitive figure. Recent US medical school matriculants have averaged around 3.8 |
| Competitive internships | 3.0+ | Used as an initial resume screen at some large employers |
| Competitive finance / consulting | 3.5+ | Some firms screen resumes at this level; policies vary and aren’t always published |
These are general benchmarks, not universal rules. Every program and employer sets its own policy, and many will consider a lower GPA alongside strong test scores, experience, or a compelling application. For detailed institution-by-institution benchmarks, see What Is a Good GPA?
Converting Between Scales
Conversion is required when applying to universities abroad, applying for international scholarships, or submitting job applications that specify a scale different from your institution’s. There is no universal formula — different universities and credential evaluators use different methods.
10.0 CGPA to 4.0 GPA
A commonly used approximation:
4.0 GPA ≈ (CGPA ÷ 10) × 4
Example: a CGPA of 8.5 → (8.5 ÷ 10) × 4 = 3.4. This is an approximation only; many universities apply their own conversion scale.
Percentage to 4.0 GPA
Percentage bands are not standardized across institutions, but the A/B/C/D/F boundaries are broadly consistent. One widely cited reference is the College Board’s published scale:
| Percentage | Grade | Points |
|---|---|---|
| 90–100% | A | 4.0 |
| 80–89% | B | 3.0 |
| 70–79% | C | 2.0 |
| 66–69% | D | 1.0 |
| Below 65% | E / F | 0.0 |
Two things this table does not cover. First, College Board leaves the 60–65% range unclassified — some institutions assign it as D, others as F. Second, the table omits plus/minus grades; many schools award B+ at 87–89% or A− at 90–92%, which shifts the boundaries. For anything official, use your institution’s own grading policy.
For official applications, do not convert yourself. University admissions offices and scholarship committees require credential evaluations from a recognized service. The most widely used is WES (World Education Services), a member of the National Association of Credential Evaluation Services (NACES). Other NACES members include ECE and IERF. The evaluation service converts your transcript on its own methodology and issues an official US-equivalent GPA.
Reading Your Transcript
Every transcript is different, but the key information is usually near the top or in a legend at the bottom. Look for these five things:
- Scale reported: usually labelled “Grading Scale” or “GPA Scale” — often something like “4.0 unweighted” or “5.0 weighted.”
- Maximum GPA: confirm whether the top of the scale is 4.0, 4.3, 5.0, or something else. This is what your GPA is measured against.
- Plus/minus policy: whether the school awards A−, B+, C−, etc., and what points they carry. Schools that don’t use plus/minus award 4.0 for straight A− work; schools that do award 3.7.
- Weighting: whether AP/IB/Honors courses get extra points (weighted) or not (unweighted). Some transcripts carry both a weighted and an unweighted GPA.
- Major vs overall GPA: some transcripts split out a “major GPA” — a GPA calculated only from courses in your primary field — separate from your overall GPA.
If any of these isn’t clear from the transcript itself, ask your registrar. Universities recalculate applicant GPAs using their own systems, but they need to know what scale your original numbers were on. Misunderstanding your own transcript is the most common reason a self-calculated GPA doesn’t match the one an admissions office computes.
❓FAQs About GPA Scales
What is a GPA scale?
A GPA scale is a standardized system that assigns numerical values to letter grades so that a Grade Point Average can be calculated. The 4.0 unweighted scale is the most common in the US and Canada.
What is the difference between a 4.0 and a 5.0 scale?
A 4.0 unweighted scale treats every course equally. A 5.0 weighted scale adds +1.0 point for AP, IB, and Honors courses, letting high-achieving students exceed a 4.0 GPA. Both are common in US high schools; the 4.0 unweighted scale is the standard for college admissions and transcripts.
Which scale do US colleges use?
Most US colleges evaluate applicants on the 4.0 unweighted scale, and many recalculate the GPA themselves using their own methodology. They also consider the weighted GPA to assess course rigor. Publishing a “converted” GPA that doesn’t match what the college calculates rarely helps an application.
How do I convert my CGPA to a 4.0 GPA?
A commonly used approximation for a 10.0 CGPA is (CGPA ÷ 10) × 4. For example, 8.5 ÷ 10 × 4 = 3.4. This is only an approximation; universities often apply their own conversion tables, and for official applications, a NACES-member credential evaluation (such as WES) is required.
What is the highest GPA possible?
On a 4.0 unweighted scale, the maximum is 4.0. On a weighted 5.0 scale, the maximum is 5.0 (all A grades in AP/IB/Honors courses). On a 7.0 scale (Australia), the maximum is 7.0. On a 10.0 scale (India), the maximum is 10.0. Some schools allow slightly higher maximums through hybrid weighting systems.
Does my school’s plus/minus system affect my GPA?
Yes, significantly. A student with straight A− grades has a 4.0 at a school that doesn’t award plus/minus, but only a 3.7 at a school that does. This is why colleges recalculate GPAs on their own scale — to make applicants from different schools comparable.
Next Steps
Knowing which scale you’re on is the foundation. The next questions — how your grades are weighted, what a “good” GPA looks like for your goal, and how to convert between systems — all follow from there.
Christian Chinonso is the founder of LearnViaHub, with 6+ years of research experience in international education — including GPA systems, scholarships, student financing, and study-abroad guidance — for students worldwide.