Attendance Calculator
Attendance percentage and classes you can still miss.
Enter your values
Enter the classes attended you are working with.
Enter the classes held you are working with.
Enter the required attendance in %.
Enter the classes remaining you are working with.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Current attendance
- 84%
- Classes you can still miss
- 9
- Classes you must attend
- 11 of the 20 remaining
- Attendance if you attend all
- 88.57%
- Status
- Above requirement
- Shortfall now
- None
Quick answer
Attendance percentage = classes attended ÷ total classes × 100; most institutions require 75% to sit exams.
attendance % = attended ÷ total × 100
At a glance
| What it does | Attendance percentage and classes you can still miss. |
|---|---|
| Category | Education |
| Inputs needed | Classes attended, Classes held, Required attendance, Classes remaining |
| Main output | Current attendance |
| Formula | attendance % = attended ÷ total × 100 |
| Cost | Free — no sign-up, no download |
How to use the Attendance Calculator
- 1Enter classes attended and total classes held so far.
- 2Set the required minimum percentage.
- 3Enter how many classes remain this term.
Inputs explained
- Classes attended
- Enter the classes attended you are working with.
- Classes held
- Enter the classes held you are working with.
- Required attendance(%)
- Enter the required attendance in %.
- Classes remaining
- Enter the classes remaining you are working with.
Worked example
Using the values the calculator loads with:
Inputs
- Classes attended42
- Classes held50
- Required attendance75 %
- Classes remaining20
Results
- Current attendance84%
- Classes you can still miss9
- Classes you must attend11 of the 20 remaining
- Attendance if you attend all88.57%
- StatusAbove requirement
- Shortfall nowNone
Frequently asked questions
How do I calculate 75% attendance?
Multiply the total classes by 0.75 — that's the minimum you must attend, so subtract what you already attended to see the gap.
Do medical leaves count?
Only if your institution records them as approved attendance; otherwise treat them as absences in this calculator.
What do I need to enter into the Attendance Calculator?
Just 4 values: classes attended, classes held, required attendance, classes remaining. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Attendance Calculator work out the answer?
Attendance percentage = classes attended ÷ total classes × 100; most institutions require 75% to sit exams. It applies the formula attendance % = attended ÷ total × 100 and shows the working so you can check each step by hand.
Is the Attendance Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.