Free online tool · 60 seconds · 9 institutes
UPSC Prelims Score Calculator 2026
The UPSC Prelims Score Calculator 2026 is a free online tool that computes your projected General Studies Paper 1 score for the UPSC Civil Services Preliminary Examination. Tap the options you marked, and the calculator applies the UPSC 2026 negative marking scheme (+2.020 per correct, −0.673 per wrong, 0 for skipped — after UPSC cancelled some questions and redistributed those marks) and compares your answers against keys from nine coaching institutes — UnderStand UPSC, Vision IAS, Vajiram & Ravi, Next IAS, Forum IAS, Sleepy Classes, StudyIQ IAS, PWOnlyIAS and SuperKalam.
60-second result
Mark answers, get your projected score immediately.
UPSC 2026 marking
+2.020 / −0.673 for GS (after UPSC redistributed cancelled-question marks).
Multi-institute compare
9 institute keys side by side — not just one opinion.
Auto-rescores on key updates
When institutes correct or update keys, your score updates.
How the UPSC Prelims Score Calculator works
The calculator follows a 3-step flow:
- Pick the question paper set (A, B, C or D) printed on your booklet cover.
- Mark the option (A/B/C/D) you chose for each of the 100 GS Paper 1 questions. Leave blank for skipped.
- Verify your mobile via OTP and your score appears with full breakdown — correct, wrong, skipped, total — plus a comparison strip across all 9 institute keys.
Why use this UPSC Prelims Score Calculator?
Most online predictors compare your answers against a single institute's key. Tricky questions where institutes disagree end up scored arbitrarily. This calculator shows you the full range — if Vision IAS marks Q47 as B and Vajiram marks it as C, you see both scores and decide which to trust.
It also handles multi-correct answers (when institutes accept both A and B) and scrapped questions (where attempters get full marks but skippers get 0) — corner cases simpler calculators ignore.
Frequently asked questions
How accurate is the UPSC Prelims Score Calculator?
As accurate as the answer keys it uses. Coaching institute keys typically match official UPSC keys on 95+ of 100 questions. Where institutes disagree, you can see each institute's verdict side by side and form your own estimate.
Does the calculator work for all sets (A, B, C, D)?
Yes. All four sets are supported. The set you pick determines which institute keys are loaded for comparison — the same answer can be correct in Set A and wrong in Set B because the question order differs.
Is there a UPSC CSAT Score Calculator too?
CSAT (Paper 2) support is rolled out separately by an admin toggle. When enabled, the calculator covers both GS and CSAT; otherwise it focuses purely on GS Paper 1 (which is what decides your rank).
Will I be charged?
No. The calculator is free. We only ask for a one-time mobile OTP so you can revisit your score later and we can auto-update it if any institute corrects their answer key.
Ready to see your score?
Open the calculator, mark the options you picked in the exam, and get your projected UPSC Prelims 2026 score in 60 seconds — with negative marking already applied.
Start now — it's free