Grade Scale Calculator: Convert Between Grading Scales
Grading scales vary wildly between countries and institutions. A 70% might be an A at one school and a C at another. A grade scale calculator helps you convert between scales and understand what your grades actually mean.
Why grade scales differ
Different education systems use different scales:
- US 4.0 scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0
- Canada 4.3 scale: A+ = 4.3, A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0
- India 10-point scale: O = 10, A+ = 9, A = 8, B+ = 7, B = 6
- Australia 7-point scale: HD = 7, D = 6, C = 5, P = 4, F = 0
A percentage that is an A at one school might be a B at another. This matters when applying to schools in different countries.
How to convert between scales
1. Know your current scale. Check your school’s official grading policy.
2. Know the target scale. What scale does the institution you are applying to use?
3. Convert each grade individually. Do not convert an overall percentage — convert each course’s grade, then recalculate.
Use the grade scale calculator to convert instantly.
Common conversion mistakes
- Converting overall percentage. You must convert each course individually because of credit weighting.
- Assuming linear conversion. The scales are not linear. A 90% is not always an A.
- Ignoring plus/minus. Some scales use them, some do not. Check the specific bands.
When you need grade conversion
- Applying to a university in a different country
- Transferring between institutions with different scales
- Calculating your GPA for scholarship applications
- Understanding how your grades compare internationally
Frequently asked questions
What is a 3.5 GPA on a 4.0 scale?
A 3.5 GPA is roughly equivalent to 85-88% on the standard US scale. It is a B+ to A- average.
How do I convert my percentage to GPA?
Convert each course’s percentage to a letter grade using your school’s bands, then convert to points. Or use a grade scale calculator.
What is a 7 CGPA in percentage?
Using the CBSE formula (CGPA × 9.5), a 7 CGPA is 66.5%. But this varies by university.
Can I convert my GPA to a different scale?
Not directly. The scales use different bands. Use your institution’s official conversion or a credential evaluation service.
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