Hello, I was wondering about differences between number grades and letter grades and how do they compare. How would you calculate your 4.0 GPA using number grades? Do you have to change each class grade into a letter and then calculate it that way or do you just use the total average and then calculate it? Does an average of 95% directly mean you get a 4.0 or is it a 3.8? I looked into a bunch of scales and calculators but I still don’t understand it.
Each School or College will calculate GPA differently.
Most schools that only give “Number grades” have a numerical average of all your classes not a 4.0 scale. Some schools also have both. If your attempting to calculate your 4.0 GPA for your HIGH SCHOOL just contact your Guidance office and someone should be able to help you.
If Your trying to calculate you GPA for colleges Admissions some colleges will calculate your GPA with their own system, most of these colleges post how they calculate it, others don’t. Some colleges don’t even look at your GPA when looking at admittance all they look at is your singular grades in each class.
My recommendation is just to focus on making good grades, As long as your making good grades your GPA should be high. If your a freshman, your school will most likely calculate your GPA when they calculate your class rank which is generally done each semester or year so you could also just wait till then.
Each of your number grades should have a letter grade equivalent. Generally 90-100 is an A, 80-89 is a B, 70-79 is a C, 60-69 is a D, anything below a 60 is an F. Your school might have its own grading scale, though, so you should check for that. Each letter grade has its own value - so an A is 4 points, B is 3, C is 2.
Average these values and you get your GPA. Honors and AP classes have a different weighting system where A=5 points, B=4, C=3 . If you have any more questions just ask 
If I go on the school’s online grading system I see a final numerical grade for the marking quarter, midterm and final (depending on where we are in the school year).
See if your student handbook explain your own school procedure since it varies.
Here - Each quarter report card has a letter grade that corresponds to that numerical grade such as A- is 90-92, 93-96 is an A, 97 and up is an A+. At our school a 95 would not be the highest gpa.
The gpa is determined based on a chart for letter grades based on things like honors, AP etc or without those.
Basically for our school each quarter is 20%, midterm is 10%, final is 10% and final year end grade that goes on the transcript that is sent to a college shows only final year end grades and school gpa. A grading scale chart is included when sent to colleges.
Colleges may determine the grades and gpa their own way.
Yes, typically 90-100 = A, 80-90=B, etc. Technically, 89.5 and up. (My D just finished a course with an xx.4985 and the school’s system rounded down).
If there are + and -, it’s typical either x7 or x8 and x2 or x3. Related numeric score is typically x.33 and x.67.
E.g., an 88 would be a B+ and 3.33. A 92 would be an A- and 3.67.
But some schools differ. If your HS doesn’t do the transformation. If your HS doesn’t, then any calculation will just be an estimate.
- Look in your student handbook and see if says anything about how grades are mapped…
- Look on your report card and see if it is translated or if it shows your GPA.
- Talk to your Guidance Counselor
- If all else fails, don’t really worry.
My daughter moved schools after her sophomore year. The first high school was the US News #1 STEM public magnet school with a 0-100 grading system. We moved internationally for work, so the second was a German International School with an IB program that has a 1-7 grading system. We never knew what her 4.0 scale GPA was. Colleges admitted her anyway and gave her merit scholarships. The only glitch we had was our State Public U that had an automated system for scholarships based on self-reported data. An email to admissions cleared that up and she was also awarded merit.
My point is, don’t worry about it, the colleges figure it out.