How to use it
Enter how many lectures you've attended and the total number of lectures held. The calculator gives your attendance percentage and flags whether it meets the common 75% college minimum.
Formula
Attendance % = (lectures attended ÷ total lectures) × 100Examples
Example: 36 of 48 lectures attended. Attendance = 36 ÷ 48 × 100 = 75% — right at the typical minimum.
Example: 30 of 45 lectures. Attendance = 66.7% — below 75%, so you'd need to attend more.
Frequently asked questions
What attendance do colleges require?
Many colleges require at least 75% attendance to sit exams, though this varies by institution and course.
How is college attendance calculated?
Divide lectures attended by total lectures held, then multiply by 100.
Does attendance affect college grades?
Often yes — some courses grade participation or bar you from exams below a threshold.