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Calculate your attendance %, required classes, safe bunk days & predicted percentage.

Ultimate Attendance Calculator (India)

Calculate your attendance %, required classes, safe bunk days & predicted percentage.

Current Attendance
0%
Classes needed
You can miss now
Predicted attendance %
Future bunks allowed
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Iske saath connected ultimate attendance calculator bhi kaafi useful hai 
<script>
document.addEventListener("DOMContentLoaded", function(){

  function clamp(v,min,max){ return Math.max(min, Math.min(max, v)); }

  function runCalc(){
    const total = Number(att_total.value || 0);
    const attended = Number(att_attended.value || 0);
    const req = Number(att_required.value || 0)/100;
    const future = Number(att_future.value || 0);
    const abs = Number(att_plannedAbs.value || 0);

    if(total <= 0){ att_curPercent.textContent = "—"; return; }

    const cur = (attended/total) * 100;
    att_curPercent.textContent = cur.toFixed(1) + "%";

    let need = Math.ceil((req*total - attended) / (1-req));
    if(need < 0) need = 0;
    att_classesNeeded.textContent = need;

    let miss = Math.floor((attended - req*total)/req);
    if(miss < 0) miss = 0;
    att_canMiss.textContent = miss;

    const after = ((attended + (future-abs)) / (total+future)) * 100;
    att_predicted.textContent = after.toFixed(1) + "%";

    let fut = Math.floor(attended + future - req*(total+future));
    if(fut < 0) fut = 0;
    att_futureMiss.textContent = fut;
  }

  function resetCalc(){
    att_total.value = 60;
    att_attended.value = 42;
    att_required.value = 75;
    att_future.value = 20;
    att_plannedAbs.value = 2;
    runCalc();
  }

  att_calcBtn.addEventListener("click", runCalc);
  att_resetBtn.addEventListener("click", resetCalc);

  runCalc();
});
</script>