Indian Institute of Space Science and Technology (IIST)
percentage to CGPA
Indian Institute of Space Science and Technology (IIST) — % → CGPA
Converting Indian Institute of Space Science and Technology (IIST) percentage back to CGPA
Indian Institute of Space Science and Technology (IIST) (Kerala) officially converts CGPA to percentage with % = (CGPA − 0.50) × 10. This page inverts that formula so you can estimate the CGPA behind a known percentage. Enter your percentage above and the calculator solves for the CGPA on the 10-point scale.
Worked example
The official Indian Institute of Space Science and Technology (IIST) formula is % = (CGPA − 0.50) × 10. Starting from a percentage of 80%, the formula reverses to a CGPA of about 8.5 on the 10-point scale. You can check this by running 8.5 through the forward Indian Institute of Space Science and Technology (IIST) CGPA to percentage calculator — it returns 80%, confirming the two directions agree.
Why this is an estimate, not an official figure
A college issues your percentage from your actual CGPA, not the other way around — so reversing the formula recovers the CGPA that would produce that percentage. When both numbers appear on your grade card, always quote the official CGPA rather than this estimate.
Source & verification
IIST certificate IIST/Dean(Acad)/2019 (08-05-2019), Dean (Academics) Dr. A. Chandrasekar
IIST certifies that the CGPA of all graduates may notionally be converted by Percentage = (CGPA − 0.50) × 10 (CGPA 8.5 → 80%), applicable to all graduates since its inception (2007 onwards). The −0.5 offset means a plain ×10 assumption overstates the percentage by 5 points. (An unreliable online claim of ×9.5 is incorrect.)
College contact
Address: Valiamala P.O., Thiruvananthapuram – 695547, Kerala, India.
Need the usual direction? Use the Indian Institute of Space Science and Technology (IIST) CGPA to percentage calculator, or browse the full percentage to CGPA directory.