About the Required Attendance Calculator
Classes you must attend from here to finish the term at your required percentage.
Also known as: attendance needed calculator, classes i must attend, attendance recovery, minimum classes to attend.
How to use this calculator
- Enter classes attended so far, classes held so far, classes remaining, required percentage.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
must attend = required % × total classes − classes already attended
Worked example
Using the values pre-filled in the calculator above:
- Classes attended so far = 30
- Classes held so far = 45
- Classes remaining = 30
- Required percentage = 75 %
the calculator returns:
- Classes you must attend: 27
- Of the remaining: 30
- Achievable?: Yes
- Current attendance: 66.67%