Pick the scale your CGPA is out of, enter it, and get an estimated 4.0 GPA. You’ll see the simple scaling method, and what published tables give if you go through percentages, so you can see how much the answer moves.
Enter your CGPA
Your cumulative grade out of 10.
Used to turn a CGPA into a percentage. Pick what your university uses.
Everything is worked out in your browser. Nothing you type is sent anywhere.
Your estimated GPA
Your result shows up here once you enter your CGPA.
How the conversion works
- Simple scaling. Divide your CGPA by the top of your scale and multiply by 4. On a 10-point scale that is CGPA ÷ 10 × 4. On a 5-point scale it is CGPA ÷ 5 × 4. It is quick, and it is the method most online converters use.
- Through percentages (10-point only). Multiply your CGPA by 9.5, or by 10 if your university uses that, to get a percentage. Then find that percentage in a published table, as the percentage to GPA converter does.
- Compare the two. If they are close, your estimate is steady. If they are far apart, the school you are applying to matters more than any number here.
A worked example on a 10-point scale
Say your CGPA is 8.12 out of 10. Simple scaling is 8.12 ÷ 10 × 4 = 3.248, so about 3.25.
Going through percentages instead, 8.12 × 9.5 = 77.1%. Here is that percentage in each published table.
| Table | Band | GPA |
|---|---|---|
| University of Toronto | 77 to 79% | 3.30 |
| Chowan University | 77 to 79% | 2.30 |
| College Board chart (whole letters) | 70 to 79% | 2.00 |
The simple method gives 3.25 and the tables give 2.00 to 3.30. That’s a wide spread for one CGPA, and it depends on who converts it. With a multiplier of 10, the same CGPA is 81.2% and the tables give 2.70 to 3.70.
A worked example on a 5-point scale
On a 5-point scale, a CGPA of 4.20 is 4.20 ÷ 5 × 4 = 3.360, about 3.36. It is also Second Class (Upper Division) under the classification below. The last column shows the simple-scaling GPA at the bottom of each class, so you can see what the classes line up with.
| Class | CGPA | GPA at the bottom of the class |
|---|---|---|
| First Class | 4.50 to 5.00 | 3.60 |
| Second Class (Upper Division) | 3.50 to 4.49 | 2.80 |
| Second Class (Lower Division) | 2.40 to 3.49 | 1.92 |
| Third Class | 1.50 to 2.39 | 1.20 |
| Fail | Below 1.50 | Below 1.20 |
Where the 9.5 multiplier comes from
CBSE’s Class X circular says the overall indicative percentage of marks is 9.5 times the CGPA. That is a CBSE school rule, and it is where the 9.5 comes from. Some universities use 9.5, some use 10, and some publish their own conversion. If your university states its own, use that. The page lets you switch between 9.5 and 10 so you can see how much it matters: on 8.12, it moves the percentage from 77.1% to 81.2%.
Assumptions to keep in mind
- No official formula converts a CGPA to a 4.0 GPA. The simple scaling method is arithmetic, not a rule from any school or evaluator.
- The 9.5 multiplier comes from CBSE and applies to its Class X grades. Universities may use 9.5, 10 or another factor. Check your own university before you rely on it.
- The three percentage tables are examples that real schools and the College Board publish. Your target school may use its own.
- The 5-point degree classes come from one Nigerian university. Other universities may set different boundaries.
- The converted number is for your own planning. Many schools want your grades as they are, and some use a credential evaluator, so check the application instructions.
Mistakes that throw a CGPA conversion off
Treating simple scaling as the answer
CGPA ÷ 10 × 4 is a fine start. It assumes a 10 and a 4.0 mean the same level and that every point on the scale is worth the same. Schools don’t convert that way, so read the result as a rough guide.
Mixing up CGPA and the percentage multiplier
The 9.5 multiplier turns a CGPA into a percentage, not into a GPA. If you multiply a CGPA by 9.5 and call the answer a GPA, you will get a number in the 70s, 80s or 90s that is not on any GPA scale.
Using the wrong scale
A CGPA of 4.2 out of 5 and a CGPA of 4.2 out of 10 are very different. Check what your transcript says the CGPA is out of before you pick the scale.
Converting a semester GPA when the school wants the CGPA
Most applications ask for your cumulative figure across all semesters, not one term. Use the CGPA on your final or latest transcript.
Treating the result as official
Credential evaluators such as WES or ECE use their own methods, and a school that asks for an evaluation wants theirs. Use this number for planning, not as your application grade, unless the school says to.
Questions students ask
How do I convert a 10-point CGPA to a 4.0 GPA?
The simple method is CGPA ÷ 10 × 4, so 8.12 is about 3.25. Going through percentages with a multiplier of 9.5 and published tables gives a wider answer, which the page shows. No official formula exists, so treat any single number as an estimate.
Where does the 9.5 multiplier come from?
CBSE says its Class X indicative percentage is 9.5 times the CGPA. That’s a CBSE school rule. Universities may use 9.5, 10 or something else, so check yours.
How do I convert a 5-point CGPA?
The simple method is CGPA ÷ 5 × 4, so a 4.2 is about 3.36. The page also shows the degree class. There is no standard way to turn a 5-point CGPA into a percentage, so the page does not guess at one.
Will a school accept this converted GPA?
Not always. Many schools take your grades as they are or use a credential evaluator such as WES or ECE. Check the application instructions before you put a converted number on a form.
Why is the answer a range and not one number?
Because schools don’t agree on how to convert. Simple scaling gives one number. Going through percentages gives a different number in each published table. The range shows how much depends on which method a school uses.
