About Us:

Welcome to Attendance Bunk Calculator. We are a dedicated platform built by students, for students. We understand that academic life is a balancing act—balancing lectures, self-study, extracurriculars, and personal well-being. Our goal is to provide a transparent, data-driven way for students to manage their attendance without the guesswork.

"Our mission is to empower students with the tools they need to make informed decisions about their academic schedule, ensuring they stay compliant with institutional rules while managing their time effectively."

Why We Built This

In most higher education institutions, particularly in India, a 75% attendance rule is strictly enforced. Falling below this threshold can lead to exam debarment, financial penalties, or academic setbacks. We realized that many students rely on rough estimates or manual calculations to track their attendance, which often leads to errors.

We built this tool to replace the "pen and paper" method with a precise, instant calculator that handles complex scenarios like future predictions and recovery plans.

What Makes Us Different

  • Precision Math: Our algorithms account for "classes per day" to give you a realistic view of how many *days* you can afford to miss, not just class counts.
  • Privacy First: We believe your academic data is yours. Our calculator runs entirely on your device; we never store your attendance details on our servers.
  • PWA Integration: As a Progressive Web App, you can install this tool on your phone and use it even when your internet connection is unstable.
  • Future Predictor: We don't just show you where you are; we show you where you'll be if you attend or skip upcoming sessions.

Meet the Developer

This project was conceptualized and developed by a student. Driven by a passion for clean UI and functional web applications, Harish aimed to solve a common problem faced by millions of university students worldwide.

Disclaimer: While we strive for 100% mathematical accuracy, institutional rules regarding medical leaves, duty leaves, and internal marks vary. This tool is intended for personal planning purposes only. Please verify your official records with your university's academic department before making final decisions.

Why this is usefull

Attendance percentage is an essential academic and professional metric used in schools, colleges, universities, and workplaces. Maintaining the required attendance percentage ensures eligibility, academic performance, and compliance with institutional policies.


Our Attendance Percentage Calculator is a free, fast, and accurate online tool designed to instantly compute attendance percentage using verified mathematical formulas.


How we calculate the attendance

  1. Enter the total number of classes conducted.
  2. Enter the number of classes attended.
  3. Click on the Calculate button.
  4. Instantly view your attendance percentage.

Attendance Percentage Formula

Attendance Percentage = (Classes Attended / Total Classes Held) × 100


Example 1: Calculate Current Attendance

If you attended 100 classes out of 144 total classes:

(100 / 144) × 100 = 69.44%


Example 2: Required Classes for 75% Attendance

If 144 classes are conducted and 75% attendance is required:

(144 × 75) / 100 = 108 Classes Required


Benefits of Using Attendance Percentage Calculator

  • Accurate and instant results
  • Eliminates manual calculation errors
  • Time-saving and efficient
  • Works on mobile and desktop
  • No login or registration required
  • Privacy-focused system