UPSC CSE · Preliminary Examination · Free
Civil Services Prelims Calculator 2026
The Civil Services Preliminary Examination Calculator 2026 is a free online tool for aspirants of the UPSC Civil Services Examination (CSE). The Preliminary stage is the first screening filter — only your GS Paper 1 score (out of 200) decides whether you advance to Mains. This calculator applies the UPSC 2026 marking scheme (+2.020 correct, −0.673 wrong, 0 unattempted — after UPSC cancelled questions and redistributed marks) and compares your answers against nine coaching institute answer keys for cross-validation.
Civil Services aligned
Built for the UPSC CSE Preliminary stage.
UPSC 2026 marking
+2.020 / −0.673 for GS (after UPSC redistributed cancelled-question marks).
Multi-institute keys
9 institutes' interpretations side by side.
60-second result
Tap your answers, see your score immediately.
About the Civil Services Preliminary Examination
The Civil Services Examination (CSE) is conducted annually by the Union Public Service Commission (UPSC) to recruit officers for the All India Services and Central Civil Services Group A & B. The exam has three stages:
- Preliminary Examination — objective MCQ. 2 papers.
- Main Examination — descriptive. 9 papers including essay + optional subject.
- Personality Test — interview with the UPSC board.
Around 10 lakh candidates apply, ~12,000-15,000 clear Prelims for Mains, and roughly 1,000 are finally selected for service.
Civil Services Prelims structure
- General Studies Paper 1
- 100 questions · 200 marks · 2 hours · decides Prelims merit
- CSAT (Paper 2)
- 80 questions · 200 marks · 2 hours · qualifying only (33%)
Only GS Paper 1 marks count for Prelims merit. CSAT must be cleared (above 66.67 marks) but does not add to your score.
Frequently asked questions
What's the difference between UPSC Prelims and Civil Services Prelims?
There's no difference — they're the same exam. UPSC conducts the Civil Services Examination, of which Prelims is the first stage. 'UPSC Prelims' and 'Civil Services Prelims' refer to the same paper.
Who conducts the Civil Services Preliminary Examination?
The Union Public Service Commission (UPSC), under the Government of India, conducts the CSE annually.
How many people clear Civil Services Prelims?
Around 12,000-15,000 candidates clear Prelims each year, out of ~10 lakh who appear. That's a ~1.5% pass rate.
Can this calculator be used for State PCS exams?
This calculator is specific to UPSC CSE Prelims. State Public Service Commission exams have different syllabi, marking schemes, and cutoffs, so the answer keys here don't apply.
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