UPSC Prelims Score Calculator 2026-2027 – Calculate Marks & Exam Pattern

UPSC Prelims marking scheme: as shown per section below, and 0 for unattempted questions. GS Paper I: 100 questions, 200 marks. CSAT (Paper II): 80 questions, 200 marks. Score = (correct × 2) − (wrong × 0.67).

UPSC Prelims Exam Pattern 2026-2027

Section	Questions	Marks	Marking
GS Paper I — General Studies	100	200	+2 / −0.67
CSAT (Paper II) — CSAT	80	200	+2.5 / −0.83

Mode	Pen and paper (OMR), two papers
Duration	2 hours per paper
Unattempted	0 marks

Only GS Paper I counts for the merit list. CSAT is qualifying — you must score at least 33%, i.e. 66 out of 200.

How the UPSC Prelims score is calculated

Example: 60 correct and 20 wrong in a section → (60 × 2) − (20 × 0.67) = 106.67 marks. Each wrong answer costs 0.67 mark(s) — 33.33% of what a correct answer earns — so guess only when you can eliminate options.

Everything for UPSC Prelims

How to calculate your UPSC Prelims score

Download the official answer key and your response sheet.
Count correct and wrong answers in each section.
Enter them above — the score updates instantly.

FAQs

What is the UPSC Prelims marking scheme?

It differs by section — see the table above. Unattempted questions get 0.

How many questions are in UPSC Prelims?

GS Paper I: 100 questions, 200 marks; CSAT (Paper II): 80 questions, 200 marks. Duration: 2 hours per paper.

Is this UPSC Prelims score the final score?

It is your raw score from the answer key. The official result may apply normalisation, bonus marks for dropped questions, or conversion to percentiles.

Is the calculator free and private?

Yes — it runs in your browser and nothing you enter is sent anywhere.

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Exam patterns are based on the latest official notifications (reviewed September 2026). Always confirm with the current notification — if the pattern changes, section-wise entries still let you calculate correctly.