STUDENT GUIDES

Understand the number, not just the answer.

These short guides explain the ideas behind StudyMetric's calculators. Use the examples to check your own work, then open the calculator when you are ready.

Percentage and marks

A percentage describes a value out of 100. For a score, the basic formula is percentage = (marks obtained ÷ maximum marks) × 100. For example, 42 out of 60 is 70%.

To avoid a common mistake, calculate the percentage from the combined marks when tests have different maximum marks. Averaging individual percentages can give a different result.

Planning a target

If you know your current marks and the maximum marks still available, you can work backwards from a target percentage. The result tells you how many future marks are required, and it also reveals when a target is mathematically unreachable.

Attendance

Attendance percentage is (classes attended ÷ classes held) × 100. When your current percentage is below a target, the required future classes depend on both your current attendance and the target. Because institutions can have different attendance policies, use the calculator as a mathematical planning aid.

CGPA and GPA

CGPA is commonly calculated as an average of grade points when subjects are treated equally. A weighted GPA accounts for different credit values by multiplying each grade point by its credits, adding the products, then dividing by total credits.

Conversion rules are not universal. For example, StudyMetric's CGPA-to-percentage tool uses the commonly cited 9.5 multiplier as an approximation; an institution may use a different official formula.

Grades

Letter-grade boundaries vary by school, board and institution. StudyMetric's grade calculator uses a clearly labelled general reference scale, so treat it as a quick reference rather than an official grading policy.

Percentile and rank

Percentile and percentage are different. A percentile describes relative position within a group, while a percentage describes a score out of 100. Simple rank-to-percentile estimates can be useful for understanding a result, but competitive exams may use normalization and official rules that a generic formula cannot reproduce.

Exam planning

A practical workflow is: measure your current result → choose a realistic target → calculate what remains → set milestones → track the exam date → study in focused sessions. The calculators are designed to support that workflow without replacing official exam information.

Quick FAQ