February 21, 2026

UPSC Prelims GS Paper 1 and CSAT Marks Calculator

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πŸ“˜ GS Paper 1 (200 Marks)

πŸ“— CSAT Paper 2 (Qualifying 66 Marks)

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UPSC Prelims GS Paper 1 and CSAT Marks Calculator

The UPSC Prelims GS Paper 1 and CSAT Marks Calculator is an essential tool for aspirants preparing for the Civil Services Examination conducted by the Union Public Service Commission. It helps candidates estimate their scores before the official result is declared and analyze their chances of qualifying for the Mains examination.

For serious aspirants targeting UPSC 2026, using a reliable marks calculator can improve strategy, attempt planning, and performance evaluation.

UPSC Prelims Exam Pattern 2026

The UPSC Civil Services Preliminary Examination 2026 is the first stage of the selection process conducted by the Union Public Service Commission. It consists of two objective-type papers – General Studies (GS Paper 1) and CSAT (GS Paper 2). Only the marks of GS Paper 1 are counted for merit ranking, while CSAT is qualifying in nature.

ParticularsGS Paper 1 (General Studies)CSAT (GS Paper 2)
Nature of PaperObjective (MCQ)Objective (MCQ)
Total Questions10080
Total Marks200200
Marks per Question2 Marks2.5 Marks
Duration2 Hours2 Hours
Negative Marking1/3rd (–0.66 per wrong)1/3rd (–0.83 per wrong)
Qualifying CriteriaCutoff BasedMinimum 33% (66 Marks)
MediumHindi & EnglishHindi & English (except comprehension passages in English)
Role in SelectionMerit-DecidingQualifying Only

UPSC Cut Off Trends (2020–2024)

The UPSC Prelims Cut Off Trends (2020–2024) highlight the minimum qualifying marks required to clear the Preliminary Examination conducted by the Union Public Service Commission. These cutoffs vary each year depending on exam difficulty, number of candidates, and reservation policies, making trend analysis crucial for aspirants.

Category20242023202220212020
General87.9875.4188.2287.5492.51
EWS85.9268.0282.8380.1477.55
OBC87.2874.7587.5489.1289.12
SC79.0359.2574.0875.4174.84
ST74.2347.8269.3570.7168.71
PwBD-169.4240.4049.8468.0270.06
PwBD-265.3047.1358.5967.3363.94
PwBD-340.5640.4040.4043.0940.82
PwBD-540.5633.6841.7645.8042.86

How UPSC Prelims Marks Calculator Works – Steps in Points

The UPSC Prelims Marks Calculator is designed according to the official marking scheme of the Union Public Service Commission. It calculates expected scores for GS Paper 1 and CSAT using the number of correct and incorrect answers entered by the candidate.

Step-by-Step Working Process

  1. Enter the number of correct answers in GS Paper 1.
  2. Enter the number of wrong answers in GS Paper 1.
  3. The calculator automatically applies negative marking:
    • +2 marks for each correct answer
    • –0.66 marks for each wrong answer
  4. The system calculates GS Paper 1 score using the formula:
    GS Score = (Correct Γ— 2) – (Wrong Γ— 0.66)
  5. Enter the number of correct answers in CSAT (Paper 2).
  6. Enter the number of wrong answers in CSAT.
  7. The calculator applies CSAT marking:
    • +2.5 marks for each correct answer
    • –0.83 marks for each wrong answer
  8. The system calculates CSAT score using the formula:
    CSAT Score = (Correct Γ— 2.5) – (Wrong Γ— 0.83)
  9. The calculator checks CSAT qualification status:
    • If score is 66 or above, CSAT is qualified.
    • If score is below 66, the candidate is not qualified.
  10. It calculates accuracy percentage: Accuracy % = (Correct Γ· Attempted) Γ— 100
  11. The tool compares GS Paper 1 score with previous year cutoffs to estimate qualification probability.
  12. Final result is displayed showing:
    • GS Paper 1 score
    • CSAT score
    • CSAT qualification status
    • Cutoff comparison analysis
This structured process helps aspirants accurately estimate their performance and decide their next preparation strategy. 

UPSC Prelims GS Paper 1 & CSAT Marks Calculator – Frequently Asked Questions (FAQs)

1. What is a UPSC Prelims Marks Calculator?
A UPSC Prelims Marks Calculator is a tool that helps candidates estimate their expected score in GS Paper 1 and CSAT using the official marking scheme of UPSC.
2. How is GS Paper 1 score calculated?
GS Paper 1 score is calculated using the formula: (Correct Γ— 2) – (Wrong Γ— 0.66) as each question carries 2 marks with 1/3rd negative marking.
3. How is CSAT score calculated?
CSAT score is calculated using the formula: (Correct Γ— 2.5) – (Wrong Γ— 0.83) since each question carries 2.5 marks with 1/3rd negative marking.
4. Is CSAT marks counted in the final cutoff?
No, CSAT is only qualifying in nature and requires a minimum of 66 marks. Only GS Paper 1 marks determine the Prelims cutoff.
5. What is the minimum qualifying mark in CSAT?
Candidates must score at least 66 marks out of 200 in CSAT to qualify.
6. Does the calculator include negative marking?
Yes, the calculator automatically deducts 1/3rd marks for every incorrect answer in both GS Paper 1 and CSAT.
7. Can the marks calculator guarantee selection?
No, it only estimates Prelims qualification chances. Final selection depends on Mains and Interview performance.
8. How accurate is the UPSC marks calculator?
It is accurate if candidates enter correct data based on the official answer key released by UPSC.
9. Should I start Mains preparation based on calculator score?
If your GS Paper 1 score is safely above recent cutoffs and CSAT is qualified, you should start Mains preparation without waiting for the official result.
10. Why is cutoff comparison important?
Cutoff comparison helps candidates understand whether their score is in a safe zone, borderline range, or risk zone based on previous year trends.

civilsaarthi@gmail.com

CivilSaarthi Team is led by a group of passionate educators and aspirants who have successfully cleared Prelims and Mains of UPSC and various State PCS exams. With first-hand experience of the examination process, the team designs authentic, exam-focused preparation material and strategy notes to help aspirants excel at every stage.

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