ExamMaths.in is a free set of calculators for Indian students, exam candidates and government employees: university grades (SGPA, CGPA and percentage), government pay, exam marks with negative marking, and age limits.
Who runs the site
The site is published by Suman Panwar (on X). The aim is simple: give students clear answers to the number questions that come up again and again, with the working shown and the official rule linked, step by step.
What makes these calculators different
- Official sources only. Every formula, rate and age limit comes from the official document, which is linked on the page.
- The working is shown. Each tool explains how the answer is calculated and includes a worked example.
- Free and private. No sign-up, no phone number. Calculations run in your browser; what you type is not sent to us.
- Kept up to date. Each page shows when its rules were last checked against the source.
How a page gets built
Every calculator starts from a document, not from another website. The official notice, pay order or university regulation is read first, the figures in it are written into a data file that records the source URL and the date it was checked, and the page is generated from that file. Nothing on the page is typed in twice, so a page cannot disagree with the source it cites or with another page that uses the same rule.
Anything worked out rather than quoted is labelled as such. The commonest case is a range of dates of birth: most notices print an age limit and a crucial date but no dates of birth, so those are calculated here, and the page says so and explains the reckoning used. Where a figure cannot be found in an official document at all, it is left out. Several calculators that would be useful are not on the site for exactly that reason, and the missing sources are recorded rather than filled in from a coaching site.
Keeping it current
A job runs every morning that checks the notice boards of the exam bodies and departments the site covers and records any new notice it finds. It never changes a figure by itself; it only flags what to read. When a new notice appears, the PDF is downloaded and verified before any number on the site moves, and the "last checked" date on the page is what that verification produced.
Read our editorial policy to see how pages are written and checked, and ourmethodology for how the calculations work.