Free Student Tools
Fast, private tools for students: calculate your GPA, check your attendance, convert CGPA to percentage and solve math with a scientific calculator. No sign-up, works on phones and computers.
GPA Calculator & Study Planner
Calculate your GPA and grades, plan your study time and count down to exams in one app.
GPAPlannerAttendance Percentage Calculator
Find your attendance %, how many classes you need to attend and how many you can miss.
Attendance75% ruleCGPA to Percentage Calculator
Convert CGPA to percentage and back with CBSE, VTU or custom formulas, plus US 4.0 GPA.
CGPAGPAScientific Calculator Online
sin, cos, tan, log, powers, roots, DEG/RAD, memory and history in one fast calculator.
MathTrigonometryMore tools coming soon
We add new free student tools regularly. Check back soon.
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Get Student Tools as an app
Add it to your home screen for one-tap access. It opens full screen, like a real app.
How to Add Student Tools to Your Home Screen
Android (Chrome)
- Open this page in Chrome.
- Tap the Install app button on this page. If you do not see the prompt, tap the ⋮ menu at the top right.
- Choose Install app (or Add to Home screen).
- Tap Install to confirm. The Student Tools icon appears on your home screen.
iPhone and iPad (Safari)
- Open this page in Safari.
- Tap the Share button (the square with an arrow pointing up).
- Scroll down and tap Add to Home Screen.
- Tap Add. The Student Tools icon appears on your home screen.
On iOS 16.4 and later, other browsers such as Chrome can also add it from their Share menu.
Windows, Mac and Chromebook (Chrome or Edge)
- Open this page in Chrome or Edge.
- Click the Install app button on this page, or the install icon at the right end of the address bar.
- Click Install. Student Tools opens in its own window and can be pinned to your taskbar or dock.
Why Use These Student Tools
- Built for students: GPA, attendance rules, CGPA conversion and everyday math in one place.
- Free and private: no account, no downloads. Calculations run in your browser and nothing is uploaded.
- Fast on any device: designed for phones first and comfortable on tablets and computers.
- Install as an app: add Student Tools to your home screen on Android, iPhone, iPad or desktop.
Student Tools Available Now
- GPA Calculator & Study Planner for GPA, grades, exam countdowns and focus sessions.
- Attendance Percentage Calculator to check attendance, required classes and classes you can miss.
- CGPA to Percentage Calculator with CBSE, VTU and custom formulas.
- Scientific Calculator Online with trigonometry, logs, powers and history.
Frequently Asked Questions
What are student tools?
Student tools are free online calculators and helpers for school and college work, such as attendance, grade conversion and scientific calculations.
Are these tools really free?
Yes. Every tool is free to use, with no sign-up and nothing to download.
Do the tools work on my phone?
Yes. They are designed for mobile screens first and also work on tablets and computers.
How do I install Student Tools on Android?
Open the page in Chrome and tap Install app. If you do not see it, open the browser menu and choose Install app or Add to Home screen, then tap Install.
How do I add Student Tools to my iPhone home screen?
Open the page in Safari, tap the Share button, choose Add to Home Screen and tap Add.
Can I use the tools offline?
You need an internet connection to open a tool. The calculations themselves run inside your browser, so nothing you type is sent anywhere.
Is my data safe?
Yes. The tools do not ask for personal information. Some tools remember settings or history only on your own device.
Will more student tools be added?
Yes. New free tools are added regularly, so check back or install the app to find them quickly.
More from Yellownex
Last updated: October 2026. Tools give estimates based on the numbers you enter. Rules differ by school, college and employer, so check your official policy.
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