Education Calculators
Free, verified education calculators with step-by-step guides and reference data.
GPA Calculator — Weighted & Cumulative GPA
Calculate weighted or unweighted GPA by course, or combine a prior GPA with a new semester. 4.0-scale grade points with Honors/AP bonuses.
AP Score Calculator — Estimate Your 1-5 AP Exam Score
Estimate your AP exam score (1-5) from composite points earned, with subject-specific historical curve thresholds for 10 major AP exams.
Scientific Notation Calculator — Convert & Calculate
Convert numbers to scientific, E, and engineering notation, or perform add/subtract/multiply/divide arithmetic directly in scientific notation.
Weighted Grade Calculator — Category Weights & Grade Needed
Calculate your weighted course grade from category weights and scores, plus the exact score needed on a remaining exam to hit your target grade.