Looking for the best calculator for CA exams? Whether you’re preparing for CA Foundation, Intermediate, or Final, having the right calculator can save time, improve accuracy, and make complex calculations easier.

In this guide, we’ll explore the top calculators for CA students in 2025, what features to look for, and tips to help you choose the perfect one for your study and exam needs.

Why CA Students Need a Special Calculator

Chartered Accountancy involves a lot of number crunching—GST, tax, markups, interest rates, and more. You need a calculator that’s:

• Fast and responsive
• Loaded with useful keys like TAX+, TAX–, GT, and MU
• Durable for long-term daily use
• Approved for exam use

🔍 Key Features to Look for in a CA Calculator

Before buying, make sure your calculator includes:

• TAX+ / TAX– keys for quick tax calculations
• MU (Mark-Up) for profit margin calculations
• GT (Grand Total) for cumulative totals
• M+ / M– / MRC memory functions
• Dual Power – battery + solar
• Large display & soft keys for comfort

Top 5 Best Calculators for CA Students in 2025

1. Casio MJ-120D Plus

• 12-digit display
• TAX+, TAX–, MU, GT, and 150 steps check
• Dual power (battery + solar)
• Durable build and comfortable keys
• Price: ₹550–₹600

Best for: CA Foundation to Final – all-rounder and exam-friendly

2. Orpat OT-512GT

• Large 12-digit display
• TAX keys, MU, GT, Auto replay
• Slim design, lightweight
• Price: ₹400–₹450

Best for: Students on a budget needing daily performance

3. Citizen CT-512

• TAX+, TAX–, MU, GT, MRC
• 12-digit upright display
• Dual power and sturdy body
• Price: ₹500–₹550

Best for: Long study hours, office + exam use

4. Casio DJ-120D Plus

• Wide 12-digit display
• 200 steps check, Tax calculation, GT & MU
• Dedicated correction key (✔️)
• Price: ₹650–₹700

Best for: Students who want more memory & checking features

5. Orpat GT-512T

• All standard CA functions
• Strong build, rubber keys
• Lightweight and travel-friendly
• Price: ₹380–₹420

Best for: CA students who need a simple but efficient calculator

Comparison Table: Quick Overview

Buying Guide: How to Choose the Right Calculator

• Stick to trusted brands like Casio, Citizen, and Orpat
• Check for must-have keys: TAX, MU, GT
• Avoid non-branded calculators – they don’t last
• Practice on the same calculator you’ll use in exams

📢 Note: Always confirm with your exam center whether the calculator is allowed.

Expert Tips for CA Students

• Practice speed using TAX and MU shortcuts
• Label your calculator to avoid mix-ups during exams
• Don’t switch calculators right before exams
• Clean the keys regularly to keep them responsive

Final Verdict: Which Calculator Should You Buy?

If you’re short on time, here’s our final pick:

⭐ Best Overall: Casio MJ-120D Plus – reliable, feature-packed, and exam-ready
💸 Best Budget Pick: Orpat GT-512T – low price, good features
🏢 Best for Office & Long Use: Citizen CT-512 – sturdy and long-lasting

Frequently Asked Questions (FAQs)

❓ Is a scientific calculator allowed in CA exams?

No. Only basic calculators with up to 12 digits and standard functions like TAX, MU, GT are allowed.

❓ Can I use Casio MJ-120D in CA exams?

Yes, it’s one of the most popular and CA-friendly models.

What’s the difference between Casio MJ and DJ series?

DJ models often have wider displays and extra checking features; MJ is more compact and exam-friendly.

Final Thoughts

Choosing the right calculator can really boost your exam performance. Invest in a model that’s fast, exam-legal, and durable. You’ll use it not just for exams, but also in your articleship and future CA practice.

➡️ Planning to buy one? You can find all the models mentioned on Amazon, Flipkart, or your nearest stationery store.