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Calculate your attendance percentage instantly.
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Enter your total and attended classes to see your attendance.
Enter the classes you've attended and the total classes held into the calculator above to get your exact attendance percentage. Below, you'll find the formula, a worked example, and how many classes you can safely miss without falling below your required percentage.
An attendance calculator turns your raw class counts into a percentage, and tells you how many more classes you can miss, or need to attend, to stay above your school's required minimum.
Most universities and colleges set a minimum attendance percentage, commonly 75%, that you need to maintain in order to sit for final exams. Falling below it, even by a small margin, can mean being barred from an exam regardless of how well you know the material.
Enter the number of classes you've attended and the total number of classes held so far. The calculator divides attended by total and multiplies by 100 to give your current percentage. If you enter your required percentage and the number of classes remaining in the term, it can also tell you exactly how many more classes you need to attend, or how many you can afford to miss.
Attendance % = (Classes Attended ÷ Total Classes Held) × 100
To work out how many more classes you need, the calculator rearranges the same formula: it solves for the number of additional classes required so that your attended total, divided by your final total, meets your required percentage.
Say a student has attended 68 out of 80 classes held so far this term:
Classes attended: 68
Total classes held: 80
Attendance % = (68 ÷ 80) × 100 = 85.0%
At 85.0%, this student is comfortably above a typical 75% requirement, with some room to miss a few more classes if needed.
Now say a different student has attended 78 out of 98 classes, with 20 classes remaining in the term, and needs to reach 75% by the end:
Classes attended so far: 78
Total classes held so far: 98
Classes remaining: 20
Required attendance: 75%
Minimum additional classes needed: 11 out of 20
This tells the student exactly how many of the remaining classes they can afford to miss while still reaching their required percentage by the end of the term.
For a rough reference, here's how many classes you could miss out of a 100-class term at a few common required percentages:
| Required Attendance | Total Classes | Classes You Can Miss |
|---|---|---|
| 75% | 100 | 25 |
| 80% | 100 | 20 |
| 85% | 100 | 15 |
| 90% | 100 | 10 |
This table assumes a 100-class term for easy scaling. Use the calculator above with your school's actual total for an exact number.
If a class was cancelled by the instructor, it usually shouldn't count against your total or your attended count. Check your institution's policy before including it.
Your percentage is attended divided by held, not attended divided by the total classes scheduled for the entire term. A class that hasn't happened yet isn't part of either number.
Some programs track lecture and lab attendance separately, each with its own minimum. Calculate them independently rather than combining the numbers.
Many institutions exclude certain approved absences from the calculation. If you have documented leave, confirm whether it's excluded before assuming your percentage is lower than it actually is.
Minimum requirements vary by school, and some programs round differently. Confirm the exact rule before treating a calculated number as final.
Checking your percentage right after an absence, rather than waiting until the end of term, gives you time to adjust before it becomes a problem.
If your school has separate cutoffs, keep two running totals instead of one combined number.
Many schools check attendance a few weeks before final exams, not on the last day of classes. Know that cutoff date so you're not caught off guard.
The questions students ask most often about tracking and calculating attendance.
Divide the number of classes you attended by the total number of classes held so far, then multiply by 100. For example, attending 68 out of 80 classes gives 68 ÷ 80 × 100 = 85%.
It depends on your total number of classes for the term. As a rough guide, if your course has 100 total classes, you can miss up to 25 and still meet a 75% requirement. Use the calculator above with your exact total for a precise number.
This varies by institution, but 75% is a common minimum in many university systems. Some programs require 80% or higher. Always check your specific school's academic policy.
Depending on your institution's policy, you may be barred from sitting the final exam, required to submit a formal appeal, or asked to provide medical or approved documentation to cover the shortfall. Check with your academic office as soon as you notice a shortfall.
Usually not, since a cancelled class was never held. Most institutions exclude cancelled sessions from both your attended count and your total count, but confirm this with your specific school's policy.
This depends on how many classes you've already attended, how many remain, and your current percentage. The calculator above can compute the exact number you need for your specific numbers.
At many institutions, attendance itself isn't graded directly, but falling below the minimum percentage can make you ineligible to sit the final exam, which indirectly affects your grade. Some courses do include a small participation or attendance grade component.
Most schools calculate attendance separately for each subject or course, since each has its own class schedule. A high percentage in one class doesn't offset a low percentage in another.
Many institutions allow appeals if you have documented medical issues, family emergencies, or other approved reasons for your absences. Check with your academic office for the specific appeal process and required documentation.
Most schools use standard rounding to one or two decimal places, but policies vary. If you're right at a cutoff like 74.6%, check whether your school rounds up to 75% or truncates the decimal.
Attendance percentage is one of the simplest calculations in this guide, but it's also one of the easiest to get wrong when you're relying on memory. The calculator above gives you an exact number instantly, and knowing the formula means you can plan your remaining classes with real numbers instead of guesswork.
Scroll up, enter your class counts, and see your exact attendance percentage instantly.