Free GPA, SGPA & Percentage Calculators for Students
Your one-stop hub for academic calculators. From GPA, CGPA and percentage conversions to scientific math, chemistry and exam tracking, StudentCalcs makes every calculation fast, accurate and completely free.
GPA, CGPA & Grade Tools
Track your score, convert between grading systems and know exactly what you need to hit your target.
SGPA to CGPA
Convert semester GPA into cumulative GPA in seconds.
GPA Calculator
Calculate semester points from subjects and credits.
Marks Percentage
Find your exact exam percentage from total marks.
Weighted Grade
Calculate your final grade based on assessment weightage.
Global Grade Scale
Convert grades between US, UK, India and Europe.
Percent to Letter
Turn a 0-100 score into A, B, C, F letter grades.
CGPA Growth Tracker New
Visualize your academic improvement over semesters.
Grade Improver
Know the score you need to boost your GPA.
SGPA to Percentage
Convert VTU and KTU grade points to percentage marks.
Lab & Exam Calculators
Everything you carried a physical calculator for, now instant in your browser and built for exam accuracy.
Chemistry Calculator Popular
Molar mass, moles and stoichiometry, all IUPAC accurate.
Scientific Calculator
Sin, cos, tan, log, factorials and algebra.
Calculus Calculator
Solve derivatives, integrals and limits step by step.
Unit Converter
Convert length, weight, temperature and more.
Projectile Calculator Physics
Find range, max height and time of flight from launch angle.
Resistor Color Code New
Decode 4, 5 & 6 band resistors, or reverse a value into bands.
Attendance, Exams & Money
Stay eligible, walk into exams prepared and manage your money like a pro on a student budget.
Exam Countdown
Track the days and hours left until your next exam.
Readiness Score
Check honestly if you are ready for the test.
Attendance Risk
Are you safe? Check your 75% rule eligibility.
Attendance Planner
How many classes can you safely skip next month?
Loan Calculator
Estimate student loan EMI, interest and payoff time.
Student Budget
Plan monthly college expenses and savings.
Study Timer
Optimize your study hours and avoid burnout.
Smart Notepad New
Distraction-free writer with auto-save and word count.
Age Calculator
Find your exact age in years, months and days.
Speaking Time New
Convert words to speaking time, or fit a speech into your time limit.
Lightning fast
Results calculate instantly in your browser. No loading, no refresh, no waiting.
Mobile friendly
A responsive dark UI that works in class, in the lab or on the bus home.
100% free
No subscriptions, no hidden locks. Every tool is free, forever.
The complete student calculator, everything in one place
StudentCalcs exists for one reason: to save students time. Whether you are converting SGPA to CGPA, checking whether your attendance is safe, solving a chemistry equation or counting down to finals, every tool here is free, instant and designed to work perfectly on your phone.
GPA & grade calculators
Your academic score is more than a number. It shapes scholarships, internships and graduate admissions. The GPA Calculator takes your subjects, credits and grades and returns your semester GPA in seconds. To track a full degree, the SGPA to CGPA converter aggregates every semester at once, and the CGPA Growth Tracker plots your progress so you can see momentum, not just marks.
- Calculate semester GPA across any number of subjects and credit hours.
- Convert SGPA to CGPA using a running average of all semesters.
- Use the Grade Improver to find the exact score needed for your target GPA.
- Turn percentages into letter grades with the Percent to Letter tool.
- Translate Indian, US, UK and European grades with the Global Grade Scale Converter.
Attendance calculator, never get debarred
The 75% attendance rule is enforced strictly across most Indian universities. The Attendance Risk Calculator shows exactly where you stand and how many classes you can miss while staying exam-eligible. The Attendance Planner goes further, helping you plan time off across the coming weeks without crossing into the danger zone.
Science & math tools for lab and exams
Leave the physical calculator at home. The Online Scientific Calculator handles trigonometry, logarithms, factorials and algebra with full precision. Chemistry students get molar mass, mole calculations and stoichiometry from the Chemistry Calculator, all built on current IUPAC atomic weights.
- Calculus Calculator solves derivatives, integrals and limits step by step.
- Unit Converter switches between length, weight, temperature, pressure and volume.
- Projectile Calculator returns range, max height and time of flight from a launch angle.
Exam planning & productivity
Knowing your material is half the battle, managing your time is the other half. The Exam Countdown Timer keeps your next exam front of mind, the Exam Readiness Score gauges your prep before you walk in, and the Study Timer helps you plan focused sessions without burning out.
Student finance tools
Managing money matters as much as managing marks. The Student Loan Calculator breaks down EMI, total interest and repayment timelines so you borrow smart, while the Student Budget Planner helps you split rent, food, transport and savings on a college income.