Why is 75% attendance required?

Most Indian universities and boards, following UGC and AICTE norms, require at least 75% attendance to sit for semester exams.

How is the number of classes to attend calculated?

We find the smallest number of consecutive classes x so that (attended + x) ÷ (total + x) reaches your target percentage.

How many classes can I bunk?

We find the largest number of classes you can miss so that attended ÷ (total + missed) stays at or above the target.

Can I use a target other than 75%?

Yes. Set any target such as 65%, 80% or 85% depending on your college rules.

Does it count medical leave?

No. If your college adds condonation for medical leave, add those classes to the attended count yourself.

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Attendance Calculator— Check your % and how many classes to attend or skip for 75%.

Classes attended

Total classes held

Required attendance %

Current attendance

70.00%

Attend in a row to reach 75%

12 classes

Worked examples

1. Below 75% — how many classes to attend?

You attended 42 of 60 classes: 42 ÷ 60 × 100 = 70%.

Classes needed = (0.75 × 60 − 42) ÷ (1 − 0.75) = 3 ÷ 0.25 = 12 classes in a row. Check: 54 ÷ 72 = 75%.

2. Above 75% — how many can you miss?

You attended 54 of 60 classes: 90%.

Classes you can skip = (54 − 0.75 × 60) ÷ 0.75 = 9 ÷ 0.75 = 12 classes. Check: 54 ÷ 72 = 75%.

3. How many classes have you missed?

Missed classes = total held − attended. With 42 of 60, you missed 18. At 75%, you can miss at most 25% of classes — 15 out of 60.

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How to Use the Attendance Calculator

Enter the number of classes you attended and the total classes held so far. Choose your required attendance, usually 75%. The tool instantly shows your current percentage and either how many more classes you must attend in a row or how many you can miss while staying above the limit.

Frequently Asked Questions

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