Enter your raw answer-key counts to see your exact exam score, accuracy, and how much negative marking cost you.
When exam answer keys are released, students only get raw counts — for example, 68 correct and 18 incorrect out of 100 questions. This tool converts those raw counts into your exact final score, factoring in the exam's negative marking scheme, and shows your accuracy and exactly how many marks negative marking cost you.
In most competitive exams (SSC, Railway, Banking, UPSC), cutoffs and ranks are decided by fractions of a single mark. Guessing incorrectly doesn't just fail to add marks — it actively subtracts from your score, which can be the difference between qualifying and missing a cutoff. This calculator shows your "Score Without Negative Marking" alongside your actual final score, so you can see precisely how many marks were lost to incorrect attempts — a useful number to know before deciding how aggressively to guess on your next attempt.
Final Score = (Correct Answers × Marks per Correct Answer) − (Incorrect Answers × Marks Deducted per Wrong Answer). For example, with a +1/-0.25 scheme and 68 correct, 18 incorrect: (68 × 1) − (18 × 0.25) = 68 − 4.5 = 63.5.
Accuracy = (Correct Answers ÷ (Correct + Incorrect Answers)) × 100 — it's based only on the questions you actually attempted, not the total questions in the paper.
Check your exam's official notification or answer-key document for the exact marking scheme — it varies by exam (e.g. SSC CGL Tier 1 uses +2/-0.5, SSC CHSL and many Railway exams use +1/-0.25). If your exam isn't in the preset list, select "Custom" and enter the values manually.
Yes, it's completely free with unlimited use — no account or payment needed.