Free Online Education Tools – GPA, CGPA & Grade Calculators
Calculate GPA, CGPA, percentage, grades, attendance and exam scores instantly using accurate academic formulas — fast, reliable and mobile-friendly.
All Education Tools
Pick a tool and get results instantly.
GPA Calculator
Calculate GPA with credits and multiple grade scales
CGPA Calculator
Calculate CGPA across semesters with grade tracking
Grade Calculator
Convert marks to grades with weighted subjects
Percentage Calculator
Calculate percentages and CGPA conversions instantly
Attendance Tracker
Track and calculate attendance percentage daily
Flashcard Creator
Create and study with categorized flashcards
Quiz Generator
Create custom quizzes with multiple question types
Notes Organizer
Organize notes by category, tags, and colors
Revision Planner
Plan study schedule and track exam preparation
Rank Calculator
Calculate rankings and score statistics instantly
Why students love Koovlo
Built to save time, reduce errors, and study smarter.
Instant Results
Get accurate calculations in seconds with clean inputs.
Mobile Ready
Use any calculator smoothly on mobile or desktop.
Accurate Formulas
Standard academic formulas ensure reliable results.
Frequently Asked Questions
Quick answers to common questions.
Are these education tools free?
Yes, all education tools are 100% free and work in your browser.
Do I need to sign up?
No sign up required. Open any tool and start using it immediately.
Are these calculators accurate?
Yes. Calculations follow standard academic formulas with clear inputs.
Can I use these tools on mobile?
Absolutely. All tools are optimized for phones and tablets.