About the GPA Scale Converter
This GPA scale converter translates a grade from one grading scale to another — for example a 3.4 on a 4.0 scale into a 10-point CGPA, an 8.2 CGPA into a 4.0 GPA, or a percentage into a 5.0 weighted scale. Choose the scale your grade is on and the scale you want, and the converter shows the result plus the equivalent on every other common scale.
It is useful for international students filling in application forms that ask for a GPA "on a 4.0 scale", for comparing transcripts from different schools, and for students whose school reports on a 4.3 or 5.0 scale. It also shows the US letter grade and 4.0 grade points that the equivalent percentage would earn on a typical plus/minus scale.
The main conversion is proportional: your grade is expressed as a fraction of the scale maximum and re-applied to the new scale. That is the simplest and most transparent method, but it is an estimate — universities and credential evaluators such as WES use their own grade-by-grade tables, and some countries (India’s CBSE, for instance) publish official multipliers, so always follow the method the receiving institution asks for.
With the default inputs, the converted grade is 8.5. Change any value above to recalculate instantly.
How to use the gpa scale converter
- 1Enter your grade or GPA exactly as it appears on your transcript.
- 2Choose the scale it is on (for example 10-point CGPA).
- 3Choose the scale you need (for example 4.0 GPA).
- 4Read the converted grade and check the table for every other scale.
- 5If the institution uses its own conversion table, follow that instead.
Formula and method
The converter expresses your grade as a share of the maximum on its own scale and then applies that share to the new scale. A 3.4 on a 4.0 scale is 85% of the maximum, which is 8.5 on a 10-point scale, 4.25 on a 5.0 scale and 17 on a 20-point scale.
The letter grade and letter-based grade points use the equivalent percentage with the common US plus/minus table (93+ A = 4.0, 90 A− = 3.7, 87 B+ = 3.3, 83 B = 3.0 and so on). Because letter bands are steps, not a straight line, the letter-based 4.0 value can differ noticeably from the proportional one — especially for grades in the 60s and 70s.
- Grade
- The grade on your current scale
- Old maximum
- Top of your current scale (e.g. 4, 10 or 100)
- New maximum
- Top of the scale you are converting to
Worked examples
3.4 on a 4.0 scale to 10-point
3.4 ÷ 4 = 0.85, so the grade is 85% of the maximum. On a 10-point scale that is 8.5, and on a 5.0 scale 4.25. An 85% maps to a B (3.0) on a letter-based US scale.
8.2 CGPA to a 4.0 GPA
8.2 ÷ 10 = 0.82, and 0.82 × 4 = 3.28 on a 4.0 scale. As a percentage that is 82%, which is a B− on a US plus/minus scale.
78% to a 4.0 scale
Proportionally, 78% × 4 = 3.12. A letter-based US scale would call 78% a C+ worth only 2.3 points — a good example of why you should check which method an admissions office wants.
15/20 French grade to a 4.0 scale
15 out of 20 is 75% of the maximum, or 3.0 on a 4.0 scale proportionally. Note that 15/20 is a strong mark in France, so evaluators often map it higher.
Frequently asked questions
How do I convert my GPA to a 4.0 scale?+
Divide your GPA by the maximum of your scale and multiply by 4. For example 8.2 on a 10-point scale is 8.2 ÷ 10 × 4 = 3.28. Some schools instead convert each course grade using a table, which can give a different answer.
How do I convert a percentage to a GPA?+
Proportionally, divide the percentage by 25 to get a 4.0 GPA (80% = 3.2). With a US letter-grade table, 80% is a B− worth 2.7 and 90% an A− worth 3.7, so the letter method is usually lower for mid-range marks.
What is a 3.5 GPA on a 10-point scale?+
Proportionally a 3.5 out of 4.0 is 87.5% of the maximum, which is 8.75 on a 10-point scale.
How is Indian CGPA converted to percentage?+
CBSE schools multiply CGPA by 9.5 to estimate a percentage, while many universities publish their own formula (for example (CGPA − 0.75) × 10 or CGPA × 10). Use the CGPA to percentage calculator for those official multipliers.
Do US colleges convert international grades themselves?+
Many do, or they require an evaluation from a credential service such as WES or ECE. Self-reported conversions are usually accepted on applications but may be replaced by the official evaluation.