How to use the Negative Marking Calculator
- Pick a preset such as NEET or JEE Main, or choose Custom.
- Enter total questions, correct answers and wrong answers. Skipped questions are worked out for you.
- Check marks per correct answer and the penalty per wrong answer.
- Read your score, percentage, marks lost and accuracy.
Formula used
C = correct, W = wrong, m = marks per correct answer, p = marks lost per wrong answer.
Guessing breaks even when the chance of being right = p ÷ (m + p)Worked examples
| Exam | Correct | Wrong | Score |
|---|---|---|---|
| NEET (+4/−1) | 150 | 30 | 570 / 720 |
| JEE Main (+4/−1) | 50 | 15 | 185 / 300 |
| 1/4 rule, 100 Q | 70 | 20 | 65 / 100 |
| 1/3 rule, 100 Q | 60 | 30 | 50 / 100 |
Should you guess?
With +4 / −1 marking and four options, a blind guess is right 25% of the time, earning +1 on average (0.25 × 4 − 0.75 × 1 = 0.25). That is only slightly positive, so guess only when you can rule out at least one option. With 1/3 marking, eliminate two options first.
Frequently asked questions
How is NEET score calculated?
Each correct answer earns 4 marks and each wrong answer loses 1 mark. Unanswered questions get 0. The maximum is 720.
What is the JEE Main marking scheme?
+4 for a correct answer and −1 for a wrong MCQ. Numerical-answer questions also follow the scheme announced in the current information bulletin.
Do unanswered questions get negative marks?
No. Only wrong answers are penalised in almost all exams.
Can my score be negative?
Yes, if you answer many questions wrong. The calculator shows the exact figure.
Is there negative marking in the SAT?
No. The SAT removed the wrong-answer penalty in 2016, so always answer every question.
Our team builds and tests every tool by hand, checks each formula against official sources (IRS, HMRC, the Income Tax Department of India, CBSE, NHS, WHO) and reviews pages whenever rules change. Last reviewed on . Spotted a mistake? Tell us.