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Attendance Calculator

Calculate your current attendance percentage and how many classes you need — or can miss — to hit your target.

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About this calculator

Calculate your current attendance percentage, and find out how many more classes you need to attend — or how many you can still miss — to hit a target attendance percentage.

How to use

  1. Enter the total number of classes held and the number you've attended.
  2. Enter your target attendance percentage.
  3. Press Calculate to see your current attendance and how many classes you need or can miss.

Tips

  • If you're already at or above your target, the calculator shows how many additional classes you can safely miss without falling below it.

Formula

Current Attendance % = Attended ÷ Total × 100 Classes needed to reach target: x = ⌈(Target × Total − 100 × Attended) ÷ (100 − Target)⌉ Classes that can still be missed: y = ⌊Attended × 100 ÷ Target − Total⌋