Study Guides
Plain-English explanations of the academic math that actually matters — GPA scales, attendance rules, exam math, and how grading works around the world.
Master the fundamentals
The GPA Scale, Explained
What a 4.0 GPA actually means, how letter grades map to grade points, and why weighted vs. unweighted GPA numbers differ.
GPA & GradesHow to Raise Your GPA (With the Math Behind It)
The realistic math behind GPA recovery: how many credits and what grades it actually takes to move your average, semester by semester.
AttendanceAttendance Percentage Rules, Explained
How attendance percentage is calculated, why most universities set the cutoff at 75%, and how many classes you can safely miss.
ExamsFinal Exam Prep: The Numbers-First Checklist
Work out what score you actually need before you start revising — then plan your study time around that number.
Grading systems by country
Grading System in USA
The 4.0 GPA scale, letter grades, and how US transcripts weight credit hours.
Grading SystemGrading System in UK
First/2:1/2:2/Third degree classifications and how they map to a US-style GPA.
Grading SystemGrading System in India
The 10-point CGPA scale, the ×9.5 percentage conversion, and CBSE/UGC conventions.
Grading SystemGrading System in Canada
Percentage and 4.0/4.3 GPA scales, and how they vary by province and university.
Grading SystemGrading System in Pakistan
Percentage grading, the semester/CGPA system, and HEC's conversion guidance.
Grading SystemGrading System in Australia
High Distinction to Fail grading, and how it converts to a 4.0 GPA scale.
Admission GPA guides
GPA Requirements for US University Admission
What GPA US colleges typically expect, how holistic admissions weigh it, and how to convert a foreign transcript.
AdmissionsUK University Admission: Converting Grades to UCAS/Degree Terms
How UK admissions read grades and degree classifications, and how to present a converted GPA on your application.
Jump straight to a calculator
Global GPA Converter
Convert grades from 30+ countries to US 4.0 or reverse. Export PDF.
Open toolGPA Calculator
Calculate semester GPA from letter grades, percentages, or points.
Open toolCGPA Calculator
Average every semester into cumulative GPA and track degree standing.
Open toolAttendance Calculator
Track attendance and see exactly how many classes you can safely miss.
Open tool