Free calculators for students and parents. Everything runs in your browser – nothing you type is stored.
- CGPA to Percentage Calculator – convert CBSE CGPA or a custom university formula
- Board Percentage Calculator – overall and best-of-five percentage
- Exam Age Eligibility Calculator – check age limits for exams and jobs
- School Admission Age Calculator – your child’s age on the admission cut-off date
GMSSS15.com is an independent information portal. It is not a school website and is not affiliated with any school, board, university or government body. Always confirm dates, fees and eligibility on the official website before acting. See our Disclaimer.