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Attendance Percentage Calculator

Work out your attendance percentage and how many classes you can miss — or must attend — to hit a target.

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Attendance Percentage Calculator is free to use as often as you like, directly from this page. Its place is under School & grades; AP Score Calculator and Easy Grader (EZ Grader) answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What does Attendance Percentage Calculator do?

Work out your attendance percentage and how many classes you can miss — or must attend — to hit a target.

When would I actually use this?

Working out where a term stands: the average so far, the mark still needed to reach a target, and what a grade means on another country's scale.

What is the most common mistake?

Averaging averages. A mean of subject means is only correct when every subject carries the same weight, and coefficients are exactly what most systems use to make sure they do not.

Is there a tool for the next step?

Easy Grader (EZ Grader) is the closest one after this: Turn a number of questions and wrong answers into a percentage and letter grade, or the whole grading chart.

What else is worth having open alongside it?

Lesson Plan Generator and Quiz Generator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

The weighting arithmetic is exact. Grading scales, pass marks and rounding rules are set by each institution or ministry, so a conversion between two systems is an equivalence, not an official transcript.

Further reading

All guides →
GuideWorking Out an Attendance or Absence Rate: the Denominator DecidesNine absences give five different rates depending on what you divide by — scheduled days, sessions, weekdays, calendar days, or a part-timer's own diary. What the tool computes, the three places it misleads, and why the Bradford Factor makes short repeated absences look ten times worse than one long one.GuideWorking Out a Test Score: Negative Marking, Weights and Grade BoundariesPoints over total is trivial. What is not: averaging percentages instead of weighting them can shift a mark by twelve points, negative marking changes when guessing is worth it, and the same 62 % is a fail on one scale and an upper second on another. What the tool does, and the two things it cannot do.How-toHow to Calculate Your GPAGPA is a weighted average of your grades. Here's how to convert letter grades to points, weight by credits, and work out your overall GPA.How-toWhat Grade Do You Need on Your Final?Work out the exact final-exam grade you need to hit your target, from your current grade and the exam's weight. Here's the formula and an example.GuideThe Pomodoro Method: How Long to Work and How Long to RestTwenty-five and five come from Francesco Cirillo's method, not from a trial. What the research actually measured is task switching and the cost of getting back in — and the reason a fixed interval helps is not that 25 minutes is optimal. Plus what the planner really returns, including the long break it quietly leaves out.ExplainerA Thousand French Words Covers 80% — and Tells You NothingWe measured the coverage curve of French on 313 million words of subtitles: the top 1,000 forms account for 80.77% of running text. Then we took a normal French sentence in which 80% of the tokens are inside that top 1,000, and showed that a reader who knows every one of them learns nothing from it.