---
title: "Is Calculator Allowed in Class 12 Board Exams? (All Subjects Explained)"
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site_name: "TheSushant."
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author: "Sushant Kumar"
published: "2026-04-18 15:34:09"
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# Is Calculator Allowed in Class 12 Board Exams? (All Subjects Explained)

![Is Calculator Allowed in Class 12 Board Exams? (All Subjects Explained)](https://thesushant.in/img/og.php?id=3453&w=768&h=403)

Many Class 12 students have this doubt before exams: can you use a calculator in board exams? The answer is mostly no, but there are a few important exceptions and updates you should understand clearly.

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## Final Answer for 2026

For the 2026 board exams under Central Board of Secondary Education:

* Calculators are not allowed in most subjects
* Accountancy may have a limited exception (subject to official confirmation)
* Students with special needs can use calculators with prior approval

---

## Subject-wise Rules

### Mathematics

* Calculators are not allowed
* All calculations must be done manually
* Questions are designed to test concepts and step-by-step solving

### Physics

* Calculators are not allowed
* Numerical values are usually manageable without devices
* Focus is on formula application and accuracy

### Chemistry

* Calculators are not allowed
* Approximation and basic arithmetic skills are expected

### Accountancy

* There are recent updates suggesting that basic calculators may be allowed
* This is intended to reduce calculation load and allow focus on concepts
* However, this is not confirmed for every exam cycle
* You must check the latest official notification before relying on it

---

## Exception: Students with Disabilities (CWSN)

* Calculators can be allowed for students with conditions like dyscalculia
* Prior permission is required
* Approval must come from the school and the board

---

## Why Calculators Are Not Allowed

The board follows a clear approach:

* To test conceptual understanding instead of device dependency
* To maintain fairness among all students
* To ensure students develop strong calculation skills

---

## Important Reality for Students

Even if there are discussions about allowing calculators in Accountancy, you should not depend on it.

Prepare as if:

* You will not have a calculator in any subject

This approach ensures you are fully ready regardless of last-minute rule changes.

---

## Comparison with Competitive Exams

* Exams like NEET and JEE do not allow calculators
* Fast manual calculation is an essential skill

Your board exam preparation helps build this foundation.

---

## Practical Preparation Strategy

To perform well without a calculator:

* Practice manual calculations regularly
* Improve speed in multiplication and division
* Learn basic squares, cubes, and approximations
* Solve previous year papers without using any device

---

## Final Note

Rules can change slightly each year. Always verify updates from Central Board of Secondary Education before your exam.

The safest strategy remains simple: build strong calculation skills and avoid dependence on calculators


        
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### [Sushant Kumar](https://thesushant.in/author/sushant/)

            

Founder

        
    

            
        

As a current B.Com (Hons) student at DU SOL and an active Chartered Accountancy (CA) aspirant, I understand the exact pressure, syllabus confusion, and administrative hurdles students face daily. TheSushant.in was built to provide first-hand, stress-tested guidance. Every DU SOL update, exam strategy, and CA study note shared here comes directly from my personal academic journey, official notifications, and real-time student experience. No generic advice: practical, student-to-student blueprints to help you clear your exams and level up.

    
    
    
        
        Written & Reviewed by Author

---

## Source

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