Tools and guides
Academic Calculators
Handle percentages, marks, reading estimates, and other everyday academic calculations.
For marks, percentages, and time estimates
All tools →Academic calculators
Marks Percentage Calculator
Calculate totals and percentage across subjects.
Open Marks Percentage CalculatorWorked methods and examples
All guides →Academic Calculators reading
How to Estimate Reading Time
Estimate a reading session while accounting for difficulty and notes.
Read How to Estimate Reading Time →How to Calculate Marks Percentage
Combine marks from one or several subjects without averaging percentages incorrectly.
Read How to Calculate Marks Percentage →How to Calculate GPA Step by Step
Use grade points and credit hours to calculate a weighted semester GPA.
Read How to Calculate GPA Step by Step →GPA vs CGPA: What’s the Difference?
Understand when an average covers one term and when it covers your full course history.
Read GPA vs CGPA: What’s the Difference? →How to Calculate Your Final Grade
Work out how an exam score and its weight change your overall result.
Read How to Calculate Your Final Grade →How Weighted Grades Work
See why assessments with different weights affect a course grade differently.
Read How Weighted Grades Work →