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Education · 10 calculators

Education Calculators

Marks and percentages, grades, GPA, study time, required marks, averages, weighted scores and passing marks.

Key education formulas

Marks Percentagepercentage = marks obtained ÷ total marks × 100
PercentagePart = Percent ÷ 100 × Whole · Percent = Part ÷ Whole × 100
Gradegrade = Σ (score × weight) ÷ Σ weights
GPAGPA = Σ (grade points × credits) ÷ Σ credits
Study Timehours needed = topics × hours per topic × (1 + revision share)
Required Marksneeded = target % × grand total − marks already gained
Average Marksaverage = total marks ÷ number of subjects
Weighted Scoreweighted average = Σ (value × weight) ÷ Σ weights
Passing Markspassing marks = pass percentage × total marks
Assignment Scorefinal = raw percentage − min(days late × daily penalty, cap)

Education questions

How do I calculate the percentage of marks?

Divide the marks you scored by the total available and multiply by 100.

How do I calculate a percentage of a number?

Divide the percentage by 100 and multiply by the number. For example, 15% of 200 = 0.15 × 200 = 30.

What is a good GPA?

3.0 is solid, 3.5 opens most doors, and 3.7 and above is typically honours territory — though what counts as good depends entirely on the institution.