High School GPA Calculator

A high school grade point average summarizes course performance on a common numeric scale. In a typical unweighted system, an A is worth 4 points, a B is worth 3, a C is worth 2, a D is worth 1, and an F is worth 0. Schools may use plus and minus values such as 3.7 for an A-minus or 3.3 for a B-plus. This calculator accepts the numeric grade points published by your school so it can support either whole-letter or plus-minus policies. An unweighted GPA treats academic difficulty consistently across course levels. Multiply each course's base grade points by its credits, add those products, and divide by total credits. Credits matter when courses have different durations or workloads. A full-year class may count more than a semester elective, depending on the transcript system. If all courses carry equal credit, the calculation reduces to a simple average of grade points. A weighted GPA adds points for advanced coursework before applying course credits. Many schools add 0.5 for honors classes and 1.0 for Advanced Placement or International Baccalaureate classes. Under that convention, an A in an AP class contributes 5 points instead of 4. Policies vary considerably: some districts cap weighted points, weight only selected core subjects, or use different bonuses. Enter the exact extra weight from your school's handbook rather than assuming every advanced class follows the typical values shown here. The calculator reports both versions. The unweighted result helps compare performance on the familiar 4.0 scale, while the weighted result reflects entered course rigor. Neither number automatically matches a college's recalculated GPA. Admissions offices may exclude electives, standardize course levels, focus on core academic subjects, or recompute grades using their own scale. Your official transcript and counselor remain the authoritative sources. For accurate planning, convert letter grades to numeric values before entry, keep credit units consistent, and include only courses relevant to the period you want to evaluate. A semester GPA should contain one semester's classes; a cumulative GPA should include all applicable completed terms and may require more rows than this quick calculator provides. Do not enter the advanced-course bonus inside the base grade field because the tool adds it separately. Use the result to test realistic scenarios, identify where improvement has the greatest effect, and understand the relationship between credits and course rigor. GPA is only one part of an academic record. Course selection, grade trends, extracurricular work, essays, and local school context may also matter in admissions and scholarship decisions.