75% attendance calculator
To keep 75% attendance you must attend at least three of every four classes, so you can miss at most one class for every three you attend. Use the calculator for your exact numbers, or read your row in the table below.
Where do I stand?
Count every class held so far, including the ones you missed.
75% attendance table
For each number of classes held so far: the fewest you must have attended to be at 75%, and the most you can have missed.
| Classes held | Attend at least | Can have missed |
|---|---|---|
| 10 | 8 | 2 |
| 15 | 12 | 3 |
| 20 | 15 | 5 |
| 25 | 19 | 6 |
| 30 | 23 | 7 |
| 35 | 27 | 8 |
| 40 | 30 | 10 |
| 45 | 34 | 11 |
| 50 | 38 | 12 |
| 55 | 42 | 13 |
| 60 | 45 | 15 |
How to work it out yourself
attend at least = ⌈ held × 0.75 ⌉
can miss in total = ⌊ held × 0.25 ⌋
With 30 classes held: 30 × 0.75 = 22.5, rounded up to 23 attended, so up to 7 missed. If you have attended 24, you are at 80% and can miss 2 more: 24 of 32 is exactly 75%.
Where the 75% rule comes from
75% is a common minimum at universities and colleges, especially in India, but it is set by each institution, and some ask for 80% or 85%. If yours uses a different number, change the target in the attendance calculator.
Common questions
How do I calculate 75% of my classes?
Multiply the classes held by 0.75 and round up. For 48 classes held: 48 × 0.75 = 36, so you must have attended at least 36.
Is 74.5% rounded up to 75%?
Only if your college says so. Many attendance systems compare the exact percentage with 75 and do not round, so treat 74.5% as below the limit unless your rules say otherwise.
How many classes can I miss out of 60 for 75%?
15. You must attend at least 45 of 60 (60 × 0.75).
What happens if my attendance is below 75%?
It depends on your institution. Common outcomes are a warning, a fine or a condonation request, or not being allowed to sit the end-of-semester exam. Check your college's rules.