Exam score & negative marking calculator

What this does

This calculator works out what you actually scored on a multiple-choice paper once negative marking is applied. Enter how many questions the paper had, how many you got right and how many you got wrong, and it fills in the unattempted count for you, then shows your raw score, your percentage, your accuracy on the questions you did attempt, and how many marks the penalty cost you. Presets are built in for the marking schemes Indian aspirants meet most often, including NEET UG, JEE Main, SSC CGL, UPSC Prelims, CAT and GATE, and every value can be overridden for a school test or an internal mock. It also tells you whether a blind guess is worth taking under your marking scheme, by comparing the expected gain from a correct answer against the expected loss from a wrong one across the number of options in the paper.

Who it’s for

This page is for students checking a paper against a published answer key the evening after an exam, for coaching institutes explaining to a batch why attempt strategy matters as much as syllabus coverage, and for teachers who need to convert a raw right-and-wrong count into a percentage without setting up a spreadsheet. It is equally useful before an exam: by changing the correct and wrong counts you can see how many risky attempts a paper can absorb before the penalty starts eating into the marks you earned honestly. Nothing you enter is sent anywhere; the whole calculation runs in your browser, so it works on a phone with a patchy connection.