
Is my GPA good? What 2.5, 3.0, 3.5 and 4.0 really mean
What each GPA means in letter grades, how it compares with real averages for high school, grad school and med school, and how to raise it.

How to calculate your grade: points vs weighted, with examples
The two ways teachers calculate grades, how to tell which one your class uses, and the exact steps to work out your own grade.

Weighted vs unweighted GPA: what's the difference?
How unweighted and weighted GPAs are calculated, what honors and AP bonuses do, and which number to report, with a worked example.

What do I need on my final? The formula, explained
How to work out the score you need on a final exam, with a worked example, a quick table and what to do when the answer is over 100%.
Grade guides
Each guide answers one grading question, shows the arithmetic and links to the calculator that does it for your own numbers.