Attendance percentage calculator

Attendance percentage is the share of classes you actually attended out of every class you were expected to attend. The formula is fixed and simple.

Attendance percentage = (classes attended ÷ total classes) × 100

If you attended 152 out of 160 classes this semester, your attendance percentage is 95 percent. This calculator does that maths for you, instantly, using the numbers you enter.

Why this number follows you around

Most students first look this up because a percentage on a school portal or university system doesn't match what they expected. But attendance percentage isn't just a report card statistic in Australia. It's a real threshold with real consequences attached, depending on who you are and what you're enrolled in.

International students on a student visa generally need to maintain at least 80 percent attendance under the National Code of Practice. Falling below that can trigger a formal warning from your institution, and repeated breaches can affect your visa status through mandatory reporting to the Department of Home Affairs.

Domestic school students face a different kind of pressure. Many state education departments treat attendance below 90 percent as a flag for intervention, and chronic non-attendance can involve a parent or guardian being contacted directly by the school.

TAFE and VET providers often set their own minimum, commonly somewhere between 80 and 90 percent, tied to whether a unit of competency can actually be assessed as complete.

None of these thresholds is universal. Check your specific institution's policy rather than assuming one number applies everywhere.

Using the attendance percentage calculator

1. Enter the number of classes, sessions, or days you actually attended.
2. Enter the total number you were expected to attend.
3. The calculator returns your current attendance percentage immediately.

No login. No saved data. Just a number, calculated the moment you enter it.

How many more classes can I miss and still stay above my required threshold?

Say you're required to maintain 80 percent attendance across a 20-week course meeting once a week, so 20 total sessions. You've already missed 3. That puts you at 17 out of 20 so far, or 85 percent. To find out how many more absences you can afford and still land at 80 percent or above by the end, you need to work backward from your total sessions, not just your current percentage, since a percentage on its own doesn't tell you how much room you actually have left.

This is the calculation students usually want but rarely find explained clearly: your remaining allowance shrinks every week, even if your current percentage still looks fine.

Not every system counts the same way

Two students can miss the same number of classes and end up with different official percentages. This happens more often than people expect.

Some institutions count a late arrival as a full absence. Others count it as a partial one, or not at all if you arrived within a grace period. A half-day absence at school might register as 0.5 of a day missed, or as a full day missed, depending on the system. Rounding rules differ too. An 84.6 percent attendance rate might display as 85 percent on one portal and 84 percent on another.

This calculator gives you the raw, unrounded arithmetic. Your official record might round differently, apply grace periods, or weight partial absences in a way this simple formula doesn't. When the exact number matters, like sitting right on a threshold, check your institution's actual counting method rather than relying on this figure alone.

What this number can't tell you

An attendance percentage counts presence. It doesn't account for approved leave, medical certificates, or exemptions your institution may apply separately before your official attendance record is finalised. Many providers reduce your total expected sessions when leave is formally approved, which changes the denominator in the calculation entirely, not just the numerator. If you believe your recorded attendance doesn't reflect approved absences, check with your institution's student administration team directly, since this calculator works purely from the raw numbers you enter.

Attendance Percentage Calculator FAQs

What attendance percentage do international students need in Australia?

Generally 80 percent, under the National Code of Practice for providers registered to teach international students. Some providers set stricter internal thresholds, so check your specific enrolment conditions.

What happens if my attendance drops below the required percentage?

Consequences vary by institution and enrolment type. For international students, this can trigger formal warnings and, in serious cases, reporting obligations that may affect visa status. For domestic school and TAFE students, it typically means contact from student support, a parent, or a course coordinator.

Does approved sick leave count against my attendance percentage?

Often not directly, but policies vary. Many institutions adjust your total required sessions when leave is formally approved, rather than simply excusing the missed session from your existing total. Confirm this with your specific institution.

How many classes can I miss and still meet an 80 percent requirement?

It depends on your total number of sessions, not just your current percentage. A course with 20 total sessions allows up to 4 absences to stay at exactly 80 percent, while a course with 40 sessions allows up to 8, since the allowable number scales with the total, not with a fixed count.

Is this the same as a school reporting my attendance to authorities?

No. This is an independent calculator based on the numbers you enter. It doesn't record, store, or report anything to your school, university, or any government body.