All Calculators
Every free calculator on Student Calculator Hub, grouped by category. More calculators are added regularly.
Academic
Percentage Calculator
Work out your percentage from obtained marks and total marks in seconds.
Open calculatorMarks Calculator
Add marks across multiple subjects to get your total, average and overall percentage.
Open calculatorAverage Calculator
Find the average, sum and count of any list of numbers or scores.
Open calculatorGPA Calculator
Calculate your weighted GPA from course grades and credit hours.
Open calculatorCGPA Calculator
Calculate your CGPA across semesters and subjects from grade points.
Open calculatorCGPA to Percentage Calculator
Convert your CGPA to an estimated percentage using the standard 9.5 multiplier.
Open calculatorFinal Grade Calculator
Find out what grade you need on your final exam to reach your desired course grade.
Open calculatorExam Percentage Calculator
Calculate your exam percentage and see an approximate letter grade instantly.
Open calculatorGrade Calculator
Calculate your overall grade and letter grade from weighted assignments and tests.
Open calculatorSchool & College
Attendance Calculator
Check your attendance percentage and how many classes you can attend or skip.
Open calculatorAttendance Shortage Calculator
Find out exactly how many classes you need to attend to reach a target attendance percentage.
Open calculatorStudy Time Calculator
Plan how to split your available hours across subjects before an exam.
Date & Time
Age Calculator
Find your exact age in years, months and days from your date of birth.
Open calculatorExam Countdown
Count down the days, hours and minutes left until your next exam.
Open calculatorDate Difference Calculator
Find the number of days, weeks or months between two dates.