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Grade & GPA guides
The how and why behind the numbers — plain-English walkthroughs of grading math, each linking to the calculators that run it for you. Everything here gives estimates; always confirm your school's official scale.
Grades
How to Calculate Your Grade
Points, percentages, and letters — the simple maths behind every grade.
Read guide FinalWhat Do I Need on the Final?
Use your current grade and the final’s weight to find the score you need.
Read guide GPAHow GPA Is Calculated
Grade points, credit hours, and the 4.0 scale, step by step.
Read guide GPAWeighted vs Unweighted GPA
Why Honors and AP classes can push a GPA above 4.0 — and when they don’t.
Read guide ScalesGrading Scales & Curves Explained
A–F cutoffs, plus how flat, square-root, and top-score curves work.
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