About All Grade Calculator

Why this site exists

Zufishan holds an MS in Environmental Science and spent years working through university grading systems as a student. Navigating CGPA calculations, percentage conversions, admission aggregate requirements and attendance rules across South Asian and US institutions, she kept running into tools that were either inaccurate, cluttered or impossible to use on a phone at 11pm before an exam.

All Grade Calculator started as a fix for that problem. It now hosts 39 free calculators for students in the United States, Pakistan and India, plus a small set of guides that explain the formulas behind them. Everything runs in your browser: nothing you type is stored or uploaded, there is no account, and there is no paywall.

How formulas are chosen and checked

Each calculator implements one published formula, and the tool page says which one. The process for every tool is the same:

1. Find the issuing document. For a conversion or admission formula that means the board circular, university regulation or admissions policy that defines it, not a third-party blog. The bodies we rely on are listed below.
2. Reproduce the worked example. Where the document includes an example (CBSE, VTU and REC all do), the calculator must return the same number to the same rounding before it ships.
3. State the scope. If a formula only applies to one scale, one board or one intake year, the page says so and links to the alternative. For instance, the Pakistani 4.0 and 5.0 scales get separate options, HEC’s recommended table is kept apart from the linear conversion, and the CBSE × 9.5 rule is kept apart from the general (CGPA − 0.75) × 10 formula.
4. Re-check on a schedule. Every tool carries a “Last reviewed” date. That date, the structured data behind the page and the sitemap all read from one field, so they cannot drift apart. A review means the source document was re-opened and the calculator re-tested, not that the page was merely rebuilt.

Where institutions genuinely differ (Pakistani universities that apply their own letter-grade boundaries, Indian universities with a different subtraction constant), the page notes the variation and the result carries a disclaimer. No calculator can know your registrar's rounding rule, so treat results as educational estimates and confirm anything that will appear on an application.

Data sources

These are the bodies whose published rules the calculators follow. Individual tool pages link to the specific document they use.

• Higher Education Commission of Pakistan (HEC): CGPA to percentage on the 4.0 and 5.0 scales, HEC aggregate weightings, university recognition status.
• Pakistan Medical and Dental Council (PMDC): MDCAT aggregate weightage for MBBS and BDS admissions.
• University of Engineering and Technology, Lahore: ECAT aggregate formula for engineering admissions in Punjab.
• National Testing Service (NTS): NAT and GAT score reporting and percentage conversion.
• Central Board of Secondary Education (CBSE): The CGPA × 9.5 conversion for class X grade sheets and the 10-point grade bands.
• Anna University: Anna University CGPA × 10 percentage conversion (ACOE letter 001/ACOE(UDs)/2021, University Departments).
• Visvesvaraya Technological University (VTU): VTU conversion: CGPA × 10 under the 2021-22 regulations (clause 21OB13.2) and (CGPA − 0.75) × 10 for the 2015, 2017 and 2018 schemes.
• Rajalakshmi Engineering College: R2023 regulations: grade bands, grade points and internal/external weighting.

US GPA and weighted-grade tools follow the standard 4.0 quality-point method used by most American colleges (A = 4.0, A− = 3.7, B+ = 3.3 and so on). Because there is no single national regulator, the GPA pages describe the common scale and flag where a school might use plus/minus grades or a weighted 5.0 scale differently.

Reviews and corrections

One person currently writes and maintains every page, and that is stated plainly rather than hidden behind a generic “editorial team”. Subject-matter review comes from the source documents themselves and from readers: students, teachers and admissions staff who write in when a university changes its policy. Corrections are handled the same way every time:

• The report is checked against the current official document.
• If the calculator is wrong, it is fixed and re-tested against the document's worked example.
• The page's “Last reviewed” date is updated and the change is described in plain language on the page where it matters.

If you are faculty, a registrar or an admissions officer and would like to review a formula for your institution, please get in touch. Contributions are credited on the relevant page. Our full policy is on the editorial standards page.

What the site does not do

• It does not store, upload or share the numbers you enter.
• It does not require an account or an email address.
• It does not claim results are official. Transcripts, board results and university merit lists always take precedence.
• It does not publish invented ratings, testimonials or “verified by” badges.

Tools on this site

The most-used calculators are the GPA Calculator, CGPA to Percentage (with dedicated HEC, CBSE and India versions), the Final Exam Calculator, the Pakistan Merit Calculator with its MDCAT and ECAT aggregate tools, and the Attendance Calculator. The complete list, grouped by region, is on the all tools page.

Contact

For formula corrections, feedback or calculator requests, use the contact page. For writing, you can find Zufishan on Medium.