Bunk Calculator
Pop in your class numbers and we'll tell you in two seconds if it's safe to skip today, or if you really shouldn't.
Okay, So What Is This Thing? 🤔
It's a tiny tool that does one job really well: it tells you if it's safe to skip your next class. You tell it how many classes have happened so far, how many you actually went to, and what percentage your college needs. We do the boring math, you get a straight answer. No guessing, no scary surprises during exam week.
And just so you know, nothing you type gets saved or sent anywhere. It all happens right there in your browser.
Three Steps, That's It
Tell us your numbers
Total classes so far, and how many you've actually attended. That's all we need.
Set your minimum
Most colleges ask for 75%, but pop in whatever number yours actually needs.
Get your answer
We'll tell you exactly how many classes you can skip, or how many you need to attend next.
Here's What It Looks Like
Say your college has held 120 classes so far. You've made it to 93 of them. Your college wants 75% attendance. Plug those numbers in, and here's what you'd get:
Skip a second one, though, and you'll drop below the line. That's the kind of exact answer you get, no vague guessing, no "should be fine probably."
Mistakes Students Keep Making
🙈 "One class won't matter"
It adds up way faster than you think. Miss a few in a row and your percentage drops quick.
📈 Forgetting the total keeps growing
Even on days you skip, a class still happened. That still counts against your percentage.
⏰ Checking way too late
Waiting until exam week to check your attendance means you've got zero room left to fix it.
🤷 Guessing instead of checking
Your college's actual minimum might not even be 75%. Some departments ask for more.
Frequently Asked Questions
What is a bunk calculator?
It's a simple tool that tells you how many classes you can safely skip, or how many you need to attend, to keep your attendance above what your college asks for.
How is attendance percentage worked out?
Just divide the classes you attended by the total classes held, then multiply by 100. The tricky part is that the total keeps growing every day, whether you show up or not, so your safe number changes too.
What's the usual minimum attendance colleges ask for?
75% is the most common number, but it's not universal. Some courses ask for less, some ask for more. Check your own college's rule to be sure.
Can I skip a class and still stay above 75%?
Depends on your numbers. If you're already comfortably above 75%, probably yes. Type your numbers into the calculator above and it'll give you a straight answer.
What if I'm already below the required percentage?
The calculator will tell you exactly how many classes in a row you need to attend to climb back up. Just don't miss any of them until you're back above the line.
Is this actually free?
Yep, completely free, no sign-up, no app to download. It just runs in your browser.
Still deciding whether to skip today?
Takes about 10 seconds. Just scroll up and type in your numbers.
Check My Attendance