About GradeBridge
GradeBridge is a small set of grade calculators and converters that show their working and run entirely in your browser.
Grades are measured differently almost everywhere: letter grades in the US, a 10-point CGPA in India, percentages in China and the UK, a 1.0–4.0 scale in Germany, 7-point GPA in Australia. Students end up converting between them for applications, scholarships and job forms — often with a half-remembered formula from a forum. GradeBridge puts the common calculations in one place and explains where each one comes from.
How it works
Every calculator is a static web page. Your browser does the arithmetic with JavaScript; nothing is sent to a server, so we never see your grades. The pages keep working if you go offline after they have loaded.
What we focus on
- Visible formulas — each tool shows the calculation it used, with a worked example on the page.
- Sources — where a board, university or evaluation service publishes the rule (CBSE, VTU, JNTUH, TUM, ANU and others), the page links to it.
- Honesty about limits — there is no universal grade conversion. We show common methods side by side and say who decides officially. The guides explain the details.
- Simplicity — one job per page, sensible defaults, no accounts.
How the site is funded
GradeBridge is independent and free to use. It is funded by advertising shown on the pages, which is why you may see ads next to the tools. We do not sell data and we do not ask you to register. The privacy policy describes the cookies and advertising technology involved, and the terms set out what you can expect from the service.
A note on accuracy
Grading rules differ between institutions and change over time. The calculators give estimates for planning and for filling in forms; they are not an official evaluation. When it matters, use the rule printed on your transcript, the instructions of the institution you are applying to, or an official credential evaluation.