How many classes can I skip and still keep 75% attendance?

Enter Classes attended and Total classes, and leave Target at 75. If you are above target, the result says how many more classes you can skip and stay on target. Change Target if your college requires a different percentage.

How many classes do I need to attend in a row to get back to 75%?

If you are below your Target, the tool shows how many classes to attend consecutively to reach it. If the classes remaining cannot get you there, it tells you that the target cannot be reached.

Can I see what happens to my percentage if I skip the next few classes?

Yes. Once your numbers are valid, a slider labelled for skipping the next classes goes from 0 to 30 and shows the Projected attendance, green if still at or above target, red if below.

My college counts attendance per subject. Can I track each subject separately?

Yes. Open Track attendance per subject, add up to 30 rows with name, attended and total, and see each percentage plus an Overall figure. Use in calculator copies the overall numbers into the main fields.

Why does it say my classes attended can't exceed total classes, and are my subjects saved?

Attended cannot be higher than Total classes, and values cannot be negative. Target must be 0 to 100. Subject rows are saved in this browser's local storage only, not uploaded, so clearing site data removes them.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

📋

Free Attendance Calculator

Find your attendance percentage and exactly how many classes you can skip — or must attend — to stay above your target (the classic bunk calculator). Free and private.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree foreverBunk calculator75% target

Works offline once loaded

See your attendance percentage and how many classes you can skip — or must attend — to keep your target. Calculated in your browser.

Classes attended

Total classes

Target

Current attendance

80%

You can skip up to 3 more class(es) and stay on target.

If you skip the next 0 class(es)…

Projected attendance80%

🔒 Your numbers are computed locally in your browser — nothing is uploaded.

Common uses

Bunk CalculatorSee how many classes you can bunk and still keep 75%.
75% Attendance CalculatorCheck whether you meet the common 75% requirement.
How Many Classes Can I Skip?Find the exact number of classes you can miss.
Attendance Needed to RecoverIf you're below target, see how many classes to attend.
College Attendance CalculatorTrack your attendance percentage at college.
Minimum AttendanceMake sure you stay above the minimum required.

How It Works

Works out your attendance percentage and — the popular "bunk calculator" — exactly how many classes you can still skip while staying above your target (usually 75%), or how many you must attend to get back above it.

1
Enter your attendance
How many classes you've attended and the total held so far.
2
Set your target
Usually 75%, but set whatever your college requires.
3
See your standing
Your current percentage, shown green if you're above target, red if below.
4
Plan ahead
If you're above target you'll see how many classes you can skip; if below, how many to attend to recover.