Student calculators

Grades, conversions for study abroad, and the maths homework tools that show every step, not only the answer.

1. CGPA to percentage

   CBSE's 9.5, or one of 20 universities' official formulas, each with its source.

2. SGPA to CGPA

   Semester SGPAs to a CGPA, weighted by credits.

3. GPA converter

   CGPA or percentage on the US 4.0 scale, by two methods evaluators use.

4. GPA calculator

   Semester or cumulative GPA, weighted by credits, letters or grade points.

5. German grade converter

   The modified Bavarian formula for German Master's applications.

6. Percentage

   Marks percentage, CGPA to percent and attendance: how many classes you can miss.

7. Final grade needed

   The score the final exam has to give you for a target grade.

8. Exam countdown

   Days until the exam, turned into study hours and hours per topic.

9. Mean, median, mode

   Average, median, mode and range of a list, with the sorted list.

10. Fraction calculator

    Add, subtract, multiply and divide fractions, in lowest terms.

11. Ratio and proportion

    Solve A:B = C:x by cross-multiplying, or simplify a ratio.

12. Roots and exponents

    Square roots in exact radical form, nth roots and powers.

13. Scientific notation

    Numbers to and from a × 10ⁿ, with the decimal moves.

14. Quadratic solver

    ax² + bx + c = 0, discriminant first, real or complex roots.

15. Compound interest calculator

    How an education loan or savings grows, month by month.

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