It can be a bit cumbersome to convert a grade or group of grades from percentage to GPA on a scale of 4. Here are some simple methods that clarify how a percentage can be accurately converted to 0 to 4 GPA.
Steps
Method 1 of 4: Converting a Percentage to GPA 4.0
Step 1. You need to know the formula for converting a percentage to a four-point GPA average
We use x to represent the percentage. The formula to use when converting a percentage to GPA average (with a 4.0 scale) is (x / 20) - 1 = GPA.
Step 2. Enter the percentage in the formula and solve
Let's say you have 89% in geology. Just insert it into the formula to get the following results:
- 89/20 - 1 =
- 4, 45 - 1 = 3, 45.
- The GPA equivalent of 89% is 3.45.
Step 3. Use the same formula if the percentage exceeds 100%
The procedure will be the same even if the percentage is higher than 100%. Let's say you have a very high 108% in algebra. Here's what happens when you put it in the formula:
- 108/20 - 1 =
- 5, 4 - 1 = 4, 4.
- The equivalent GPA of 108% is 4, 4.
Step 4. Consider using a ladder
It can be helpful as to why you are calculating the GPA average. If you calculate one grade at a time to see, when you have added them all, what average admission to your high school you could achieve, you don't have to follow this formula exactly, because all grades will fall within a range anyway. For example, if your grade falls within the 83-86 range, depending on your high school, you will have a B or a 3, 0, whether or not you will be in the upper or lower part of the range.
Check the GPA system used in your school to understand how to do this conversion; instead of an A, a B instead of a B + and so on
Method 2 of 4: Convert Multiple Grades to a 4.0 Scale GPA Average
Step 1. Assign a numerical score to each of your grades
Each grade obtained at the end of a module has an equivalent number on the 4.0 scale. Find an equivalent number for each grade you get. Each school's numerical scores may vary slightly, so you'd better look into the GPA system used in your school. Here's what the typical scoring system looks like:
- A = 4
- A- = 3, 7
- B + = 3, 3
- B = 3
- B- = 2, 7
- C + = 2, 3
- C = 2, 0
- C- = 1, 7
- D + = 1, 3
- D = 1
- D- = 0.7
- F = 0
Step 2. Add up all the numerical scores assigned to each of your grades
For example, let's say you took C + in English, B in history, B + in math, C + in chemistry, A- in physical education and in art. It means you would have: 2, 3 + 3 + 3, 3 + 2, 3 + 3, 7 + 3, 7 = 18, 3.
Step 3. Divide your total by the number of modules you passed:
is another way of saying that you will need to find the numerical average score. This will give you the final GPA score on a 4.0 scale.
In our example we added our numbers to get 18, 3. Since we got 6 votes, we need to divide 18.3 by 6. 18, 3 ÷ 6 = 3.05 (rounded to 3.1)
Method 3 of 4: Calculate the GPA Weighted Average
Step 1. Try to understand the meaning of the GPA weighted average:
is the principle that some more difficult modules, such as American Honors or AP (Advanced Placement) (our Honors courses), should be weighted to reflect their higher degree of difficulty. Thus, instead of the traditional four-point scale, the weighted scale can be as high as 5.0, reflecting the heavier workload of the course. The idea is that getting a "C" in AP algebra is just as difficult as getting a "B" in normal algebra.
Step 2. Assign a numerical score to each of your grades
This time, use the same table as above, with the difference that you will add one point for each grade you earn in an Honors or AP class. Here's what the scale system usually looks like:
- A = 5
- A- = 4, 7
- B + = 4, 3
- B = 4
- B- = 3, 7
- C + = 3, 3
- C = 3, 0
- C- = 2, 7
- D + = 2, 3
- D = 2
- D- = 1, 7
- F = 1
Step 3. Add all the numerical scores assigned to each of your ratings
Let's take the example that you have taken C in English AP, B in the Honors of History, B in Mathematics, C + in Chemistry AP, B- in Music Theory and A- in the Honors of Art. In that case you would have: 3 + 4 + 3 + 3, 3 + 2, 7 + 4, 7 = 20, 7.
Step 4. Divide that amount by the number of votes you got
Again, you are only finding the average score. This will give you the final GPA score on a 5.0 scale. Note that you can receive a full 5 if all subjects are Honors or AP and if you get "A" on each module. Many students are required to take modules without extra degrees of difficulty, such as physical education.
In our example we added our numbers to get 20, 7. Since we got 6 votes, we need to divide 20, 7 by 6. 20, 7 ÷ 6 = 3, 45 (or, rounding, 3, 5)
Method 4 of 4: Calculate Research Grades or Transcripts Only
Alternative method for those who have not taken any course.
Step 1. Multiply the credit hours (CH) by the equivalent of the grade obtained in order to obtain the quality points (QP)
For example: (3 CH * 4, 5 (A +)
Step 2. Total credit hours from the last two years of study or the last 60 hours (see above)
Step 3. Divide the total QPs by your total credit hours
- (Product: CH * Votes) / (Total CH); or
- QP / (Total CH)
Step 4. Finished
Here is your GPA.
Calculated GPA / 4 = X / 4, 5
Advice
- You can use a calculator to make the task faster and easier to solve.
- If your grades aren't exactly the best, try to improve. Try to find out what you need to do to achieve your goals.
