Whats the difference between weighted GPA and unwieghted GPA?

If you are taking Advanced Placement classes or and Honors course and your school says those courses are weighted, an "A" would receive 5 credits rather than 4, an "A" in a regular class would receive 4. The weighted GPA is as if all your classes were based on a 0-4 scaled, the weighted looks at which classes are honors/AP classes and then bases only those classes on a 0-5 scale. For example Say these were you classes AP Bio - A AP English - A Honors Pre-Calculus - A Spanish III - A Extracurricular Class - A You would receive 5, 5, 5, 4, 4 which is a 4.6 GPA. That is the weighted, if it were unweighted it would be 4, 4, 4, 4, 4, which is just a 4.0.

Weighted GPA takes into account the difficulty of the classes. An unweighted GPA does not. The reason there are two calculating methods is because a person who takes a very challenging class and gets a B would, most likely, get an A in a less challenging class. It's a system put in place so that students who challenge themselves by taking extra hard courses are not punished if they don't get as high a grade as they would in a normal class. It also keeps those who take easier courses to maintain their GPA from taking unfair advantage of the grading situation to make themselves look good on paper. It evens the playing field, so to speak. As an example, a letter grade A usually is counted as 4 pts. when calculating a GPA. That is the standard on an unweighted scale. On a weighted scale, an A in a difficult class, such as an honors class or an AP class in high school might be assigned 4.5 or even 5 pts. I hope that helps explain it.

if you got an A- it counts as an A if you got a B+, if counts as a A- it improves youyr GPA from that course

Ask your teacher.