Calculadora de Frequência Escolar Online Grátis
Bunk planner, safe leave estimator & attendance warning system with subject tracker
The Attendance Calculator tells you your current attendance percentage and how many more classes you can safely miss before falling below your university's minimum threshold. It works subject-by-subject, flags subjects already in the danger zone, and shows how many classes you need to attend to recover.
Frequently Asked Questions
Sobre Esta Calculadora
Most South Asian universities enforce a 75% minimum attendance policy — students who fall below it are barred from semester exams regardless of their academic performance. Knowing exactly where you stand, and how much buffer you have, prevents last-minute surprises.
The safe-bunks formula isn't just a percentage check. It solves for the maximum number of additional absences you can accumulate without crossing the threshold, accounting for the total classes already held.
Switch to the subject-wise Bunk Planner to see each subject independently — because missing five Physics lectures affects your Physics attendance, not your overall average. Subjects already below the minimum are flagged, and the calculator shows how many consecutive classes you must attend to get back into compliance.
A Calculadora de Frequência informa sua porcentagem de presenças e quantas aulas você pode faltar com segurança antes de cair abaixo do limite mínimo da sua universidade.
Fórmula
Attendance % = (Classes Attended / Total Classes Held) × 100 Safe Bunks = floor(Attended × 100/MinRequired - TotalHeld)
Exemplo Resolvido
Checking safe bunks for a student with 75% minimum requirement
Entradas:
- Total classes held: 52
- Classes attended: 43
- Minimum required attendance: 75%
Passo a Passo:
- Current attendance = (43 / 52) × 100 = 82.7%
- Minimum attended classes needed = ceil(52 × 0.75) = 39
- Safe bunks = floor(43 × 100 / 75 − 52) = floor(57.33 − 52) = 5
Dicas
- Most universities require 75% minimum attendance to sit for exams.
- Safe Bunks = how many classes you can skip without falling below minimum.
- Switch to Bunk Planner mode to see subject-wise safe bunk counts.