GPA Scale: 4.0, 4.3, 5.0, 10-Point and More Explained
GPA scales are not universal. Different countries, and sometimes different schools within the same country, use different scales to convert letter grades into points. If you have ever tried to compare your GPA to a friend at another school, you have probably run into this problem.
This guide breaks down the most common GPA scales, how they differ, and which one applies to you.
The US 4.0 scale
The most common scale in the United States. Letter grades map to points like this:
- A or 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 = 1.0
- F = 0.0
The 4.0 scale has no room above a plain A. An A+ is treated the same as an A.
The weighted 5.0 scale
Many US high schools use a weighted scale to reward students who take advanced courses. On this scale:
- AP, IB, or Honors A = 5.0
- AP, IB, or Honors B = 4.0
- Regular A = 4.0
- Regular B = 3.0
This lets students who challenge themselves earn a GPA above 4.0. A 4.5 weighted GPA is strong but not perfect.
The Canada 4.3 scale
Canadian universities often use a 4.3 scale, which gives explicit recognition to A+ performance:
- A+ = 4.3
- A = 4.0
- A- = 3.7
- B+ = 3.3
- B = 3.0
- B- = 2.7
A 4.0 in Canada is a plain A, not a perfect score. A 4.3 is the top.
The India 10-point scale
Many Indian universities use a 10-point scale for CGPA (Cumulative Grade Point Average):
- O (Outstanding) = 10
- A+ (Excellent) = 9
- A (Very Good) = 8
- B+ (Good) = 7
- B (Above Average) = 6
- C (Average) = 5
- P (Pass) = 4
- F (Fail) = 0
Conversion to percentage varies by institution. Some use CGPA × 9.5, others use different formulas.
The Australia 7-point scale
Australian universities use a 7-point scale:
- High Distinction (HD) = 7
- Distinction (D) = 6
- Credit (C) = 5
- Pass (P) = 4
- Fail (F) = 0-3
The GPA is calculated out of 7, not 4. A 6.0 in Australia is excellent.
Which scale should you use
Use the scale your institution publishes. If you are applying to a school in a different country, follow their conversion guidance or use a recognized evaluation service. Do not convert your own GPA using a rough multiplier — the scales are not linear translations.
Frequently asked questions
What is the highest GPA?
On a 4.0 scale, 4.0. On a 4.3 scale, 4.3. On a 5.0 weighted scale, 5.0. On a 10-point scale, 10.
Can I convert my GPA to a different scale?
Not directly. The scales use different bands and different credit weighting. Use your institution’s official conversion or a credential evaluation service.
What is a 4.0 scale?
The 4.0 scale is the most common GPA scale in the United States. A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0.
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