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Marks & Attendance Calculator
Turn raw marks into percentages and grades, combine weighted components, work out what you need next, and check your attendance requirement.
Three quick calculators
Switch between them — each one works on its own and nothing leaves your browser.
Percentage, grade & pass / fail
Enter a mark and the total possible. The pass mark is editable and defaults to 40%.
Result
Percentage
—
School grade
—
A / B / C / S / F scale
University grade
—
typical SL scale (varies)
Against pass mark
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Grade boundaries differ by school, board and university. The university letter shown here is a common Sri Lankan mapping for guidance only — your institution's handbook is authoritative.
Weighted component marks
Add each assessment, its weight and your score. Leave the score blank for a component you have not sat yet, then use the what-if tool to see what you need.
| Component | Weight % | Obtained | Out of | Score % |
|---|
Weighted result
Final / current mark
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Grade
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typical SL scale (varies)
Weights counted
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What-if: score needed on a component
What you need
Attendance & eligibility
Many Sri Lankan universities and schools require at least 80% attendance. Enter sessions held and attended; the minimum is editable.
Attendance result
Attendance
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Requirement
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Sessions still needed
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attended consecutively
All calculations run locally in your browser. Grade scales are indicative — always check your institution's official regulations.