GPA Guides

These guides explain the math behind the calculator and the questions that come up around it. Each one uses worked examples you can check with the calculator.

• How to calculate GPA step by step: the credit-hour formula, a full worked example, semester vs. cumulative GPA, and common mistakes.
• Weighted vs. unweighted GPA: what each number means, how Honors and AP bonuses work here, and why colleges may recalculate.
• GPA scale and letter grade points: the exact point value of every letter grade, the A+ 4.33 option, and why percentages do not map to one letter scale.
• How to raise your GPA: how much one semester can move a cumulative GPA, and how to work out the term GPA a target needs.
• UK grades and US GPA: why there is no official conversion table, and how universities on each side actually evaluate grades.

Every guide is general information. Your school's registrar and your official transcript decide what counts.