Learn the math

Grade Guides

Short, practical explanations for the formulas behind our calculators. Read the method, then try the tool.

Understand category weights, contribution percentages, and the weighted-average formula.

Learn how current grades and final-exam weights combine into a course result.

Use the required-final formula to turn a target grade into a concrete score.

Convert points earned into a percentage and understand letter-grade cutoffs.

See why a score chart makes repetitive paper grading faster.