Student Guides
Plain-language explanations of the academic and financial ideas behind our calculators — how the numbers work, how to plan around them, and what to watch out for. Pick a topic below, or open the matching calculator once you understand the concept.
Academic Planning
How to Calculate CGPA Step by Step
The full method, a worked example across four semesters, and the mistakes that throw the number off.
SGPA vs CGPA: What's the Difference?
Why colleges track both, how one feeds into the other, and which one to use on a resume or form.
Semester Percentage vs SGPA
Why these two numbers from the same semester rarely match exactly, and how to convert between them.
How Attendance Percentage Works (and How Many Classes You Can Miss)
The math behind attendance requirements, why the "safe to miss" number shrinks as the term goes on, and how to recover from a shortfall.
How to Calculate the Marks You Need
Working backward from a target grade to figure out what you need to score in a remaining exam or assignment.
How Weighted Averages Work
Why your overall grade isn't a simple average of your component scores.
Finance Basics
Simple Interest vs Compound Interest
The one-formula difference that changes how much a loan or a savings plan actually costs or earns over time.
How EMI Actually Works
Why a longer loan tenure means a smaller EMI but a much bigger total cost.
How SIP Returns Work
How compounding and time turn small monthly investments into meaningful growth.
How to Build a Basic Budget as a Student
A simple way to budget against irregular student income.
Why Read a Guide Instead of Just Using the Calculator?
A calculator gives you a number. It won't tell you why your CGPA dropped even though your marks improved, why your attendance percentage falls faster than it rises, or why two students with the same average can be in very different positions. These guides exist to explain the reasoning once, clearly, so the number the calculator gives you actually means something you can act on.