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Home / % to CGPA / IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines)
Jharkhand

IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines)
percentage to CGPA

IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) — % → CGPA

Forward formula: % = CGPA/OGPA × 10Source: IIT (ISM) Dhanbad certificate No. Exam/212010/2019-20 (04-10-2019), Joint Registrar (Exam & Academics) — per 9th Senate meeting (08-07-2019)Status: verifiedLast verified: 2026-06-23 · IIT (ISM) Dhanbad certifies that CGPA/OGPA × 10 equals the percentage of marks (OGPA 8.0 → 80%), per its 9th Senate meeting; the institute follows relative grading from 2013-14. IIT(ISM) uses the term OGPA (Overall Grade Point Average) on the final grade card. Note: a commonly-cited online claim of (OGPA − 0.5) × 10 (giving 8.0 → 75%) is incorrect — the official rule is plain × 10.
This reverses the official CGPA→% formula. A percentage on a transcript is the authoritative figure; the back-calculated CGPA is an estimate. Always confirm with your university.

Converting IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) percentage back to CGPA

IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) (Jharkhand) officially converts CGPA to percentage with % = CGPA/OGPA × 10. This page inverts that formula so you can estimate the CGPA behind a known percentage — useful when a scholarship form, job portal or foreign application asks for CGPA but your marksheet only shows a percentage. Enter your percentage above and the calculator solves for the CGPA on the 10-point scale.

Worked example

The official IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) formula is % = CGPA/OGPA × 10. To go the other way, you rearrange it to solve for CGPA. Starting from a percentage of 80%, the formula reverses to a CGPA of about 8 on the 10-point scale. You can check this by running 8 through the forward IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) CGPA to percentage calculator — it returns 80%, confirming the two directions agree.

Why this is an estimate, not an official figure

A university issues your percentage from your actual CGPA, not the other way around — so reversing the formula recovers the CGPA that would produce that percentage. It matches in almost every case, but rounding on your transcript (for example a percentage printed to one decimal place) can shift the back-calculated CGPA slightly. When both numbers appear on your grade card, always quote the official CGPA rather than this estimate.

About IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines)

The Indian Institute of Technology (Indian School of Mines), Dhanbad — IIT (ISM) Dhanbad — is an Institute of National Importance in Dhanbad, Jharkhand. Founded in 1926 as the Indian School of Mines and renamed an IIT with effect from 6 September 2016, it offers B.Tech, integrated/dual-degree, M.Tech, M.Sc, MBA and Ph.D programmes across engineering, sciences and management on a 10-point relative-grading system (using OGPA, the Overall Grade Point Average, on the final grade card).

Address: IIT (ISM) Dhanbad, Dhanbad – 826004, Jharkhand, India.

Need the usual direction? Use the IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) CGPA to percentage calculator, or browse the full percentage to CGPA directory.

Frequently asked questions

What CGPA is 80% at IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines)?
Reversing the official formula % = CGPA/OGPA × 10, 80% works out to roughly a 8 CGPA on the 10-point scale. Enter your own percentage in the calculator above for an instant figure.
Is the reverse IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) CGPA exact?
It's a close estimate. The university calculates your percentage from your CGPA, so reversing the formula recovers it accurately — but transcript rounding can introduce a small difference. Treat the official CGPA on your grade card as authoritative.
Why would an application ask for CGPA when my IIT (ISM) Dhanbad — Indian Institute of Technology (Indian School of Mines) marksheet shows a percentage?
Many universities abroad and some Indian employers standardise on CGPA. If your marksheet only prints a percentage, this page gives you a defensible CGPA estimate on the 10-point scale to enter, and you can attach your marksheet as the source of record.