Student tools, all in one place
Everything you need to make student life easier.
Calculate your GPA, track attendance, plan your semester, build your resume, and discover useful tools — all in one place.
Quick GPA
Open full calculator →Semester GPA
3.67
Live preview — it really calculates. No signup, no data sent anywhere.
Most loved
Popular tools
The calculators and planners students open most — zero signup, instant results.
Percentage Calculator
Free percentage calculator: what percent is X of Y, what is X% of Y, and percentage change — three modes, instant answers.
CGPA Calculator
Calculate your cumulative GPA (CGPA) by combining previous semesters with your current courses. See exactly how this term moves your overall average.
Attendance Calculator
Calculate your attendance percentage instantly. Enter classes attended and total classes, compare against a 75% (or custom) requirement, see how many you can miss.
Grade Calculator
Average your assignment and exam scores to find your current course grade. Points-based method with letter grade and instant results.
Explore
Browse by category
Twelve categories covering everything from transcripts to tuition. More tools ship every week.
Top of the class
Tools students use most
The essentials — the ones you’ll bookmark, use weekly, and tell your friends about.
GPA Calculator
Calculate your semester GPA by credit hours and letter grades. Supports 4.0 and 4.3 scales with instant, accurate results.
Percentage Calculator
Free percentage calculator: what percent is X of Y, what is X% of Y, and percentage change — three modes, instant answers.
CGPA Calculator
Calculate your cumulative GPA (CGPA) by combining previous semesters with your current courses. See exactly how this term moves your overall average.
Attendance Calculator
Calculate your attendance percentage instantly. Enter classes attended and total classes, compare against a 75% (or custom) requirement, see how many you can miss.
Grade Calculator
Average your assignment and exam scores to find your current course grade. Points-based method with letter grade and instant results.
Word Counter
Count words, characters, sentences and paragraphs as you type. Includes reading time, speaking time and top keywords. Free, instant, private.
Required Grade Calculator
What score do you need on the final exam to pass or reach a target grade? Enter your current grade and the final's weight — get the answer instantly.
Date Difference Calculator
Days between two dates — instantly. Exact days, weeks, months and years between any two dates, plus total hours and minutes. Free and private.
Study Planner
Build a fair, realistic study schedule for your exams. Rank your subjects by priority and confidence — get a day-by-day plan instantly.
Get things done
Featured productivity tools
Focus timers, time math and writing utilities that keep assignments on track.
For the lab and the lecture hall
Engineering tools
Circuit math, conversions and unit tools for engineering coursework.
Ohm's Law Calculator
Solve V = IR instantly. Enter any two of voltage, current and resistance — get the third plus power dissipation. Supports k, M, m, µ and n prefixes.
Resistor Calculator
Decode 4-band and 5-band resistor color codes instantly — value, tolerance and range. Includes a color guide for lab work.
Voltage Divider Calculator
Calculate Vout for any resistor divider, or design one: find R2 for a target output voltage. Includes divider ratio and circuit current.
Power Calculator
Calculate electrical power from any two of voltage, current and resistance (P = VI). Instant watts with unit-prefix support for lab values.
Electrical Energy Calculator
Convert electrical power and time into energy: joules, kilowatt-hours and electricity cost. Perfect for lab reports and understanding power bills.
From campus to career
Career tools
Resumes, interviews and applications — practical help for landing the role.
Skills Gap Checklist
Quick self-audit of the skills employers look for in new graduates. Check what you have, see your gaps, get honest next steps for each.
Resume Builder
Build a clean, ATS-friendly resume: add education, experience, projects and skills; reorder sections; preview, print or save as PDF. Drafts saved on your device.
Cover Letter Generator
Generate a structured cover letter draft from your details and the job description. A fill-in template with smart placeholders — personalize before sending.
Internship Application Tracker
Track internship applications, statuses and follow-ups in one board: applied, interview, offer or rejected — with days-since-last-update reminders.
Exam season, handled
Study tools
Planners, countdowns and time budgets that turn exam chaos into a schedule.
Study Planner
Build a fair, realistic study schedule for your exams. Rank your subjects by priority and confidence — get a day-by-day plan instantly.
Exam Countdown
Live countdown to your next exam. Pick a date and name — see days, hours, minutes and seconds ticking down, with a shareable result.
Study Time Calculator
How much study time do you really have? Enter your exam date, subjects and daily hours — get total hours, per-subject hours and weekly sessions.
Flashcard Tool
Create flashcard decks and study them with a simple know/don't-know flow. Decks save to your device — no account, no uploads.
Random Study Topic Picker
Can't decide what to revise? Add your topics with priority weights and let the picker choose — weighted so important subjects get picked more often.
Revision Planner
Turn your subjects into a spaced revision schedule before exams: sessions are spread evenly across your remaining days with every topic repeated regularly.
Why StudentKit
Built like a tool, not like a chore
StudentKit exists because university life already has enough friction. Six principles keep it useful, fast and trustworthy.
Truly free
Every core tool is free, forever. No trial countdowns, no credit-card walls.
Private by default
Calculations run in your browser. Your grades and plans never touch a server.
Accurate & transparent
Every formula is shown on the page and verified by unit tests. No black boxes.
Instant by design
Results update as you type. No signup, no loading screens, no friction.
Built for mobile
Designed for campus life — quick access from your phone, wherever you are.
Always improving
A feedback button on every tool feeds a roadmap driven by real student needs.
Fresh off the press
Recently added tools
New utilities ship every week — built from student feedback.
Resume Builder
Build a clean, ATS-friendly resume: add education, experience, projects and skills; reorder sections; preview, print or save as PDF. Drafts saved on your device.
Cover Letter Generator
Generate a structured cover letter draft from your details and the job description. A fill-in template with smart placeholders — personalize before sending.
Time Zone Converter
Convert times between 30+ world time zones with daylight-saving-safe math. Schedule international calls, lectures and deadlines without the confusion.
Resistor Calculator
Decode 4-band and 5-band resistor color codes instantly — value, tolerance and range. Includes a color guide for lab work.
FAQ
Questions students ask us
Is StudentKit really free?
Yes. All core tools are free to use with no account and no limits. Some advanced features (saved plans, premium templates) may become paid later, but the calculators and utilities here stay free.
Do I need to create an account?
No. Every tool works instantly without signing up. Favorites and recently-used tools are saved on your own device, so the experience still remembers you.
Where is my data stored?
Calculations happen entirely in your browser — nothing you type is uploaded. Favorites and settings live in your browser's local storage. If you later create an account, only what you explicitly save is synced.
Which grading scales do the calculators support?
The GPA and CGPA calculators support the standard 4.0 scale and the 4.3 scale (with A+). Letter-grade thresholds follow common 10-point scales — check your syllabus for your university's exact mapping.
How accurate are the calculations?
All calculators use deterministic formulas that are documented on each page and covered by automated unit tests, including edge cases like zero credits, impossible targets and leap years.
Can I use StudentKit on my phone?
Yes — the whole product is mobile-first, and it's installable as a web app (PWA) so it behaves like a native app on your home screen.
Your student life, simplified
Make university easier — starting today.
Free tools, instant results, zero signup. The next five minutes could save you the whole term.