A grade point average of 3.6 is equivalent to a grade with letters B+ on a 4.0 GPA scale, and a percentage grade of 87 to 89. The GPA, or grade point average, is a simplified number used by colleges and universities to get an idea of overall academic performance. It takes the average of all high school grades and adjusts them on a scale of 0.01 to 4.0, with the numbers correlating to the grades in letters. A GPA of 3.6 is indicative of an academic record consisting of good grades in all subjects. To understand how the GPA works, it's important to know that each letter grade is assigned a number: an A is 4.0 (an A+ is actually 4.3, which is the real upper limit on a 4.0 scale, but only some high schools offer them), B+ is a 3.3, a B is a 3.0, a C is a 2.0, etc.
To give an example, let's say you have six B's and four A's. The GPA would be calculated by taking the average of all the grades and adjusting them on the 0.01 to 4.0 scale: (4 + 4 + 4 + 4 + 3 + 3 + 3 + 3) / 8 = 3.6.
