CAT On-Screen Calculator
Since CAT 2015 an onscreen calculator is provided in the exam. A scientific calculator was provided in CAT 2015 and since CAT 2016, the onscreen calculator has some limited operations like addition subtraction, multiplication and division. It also has some functionalities like square root and reciprocal.
The onscreen calculator can also be moved around the screen and it can be closed and opened by clicking on the calculator button in the exam interface. You can see a replica of the calculator available in the exam below. Click on the View Calculator button to practice using the calculator in the exam.
You can also take a free mock to use the calculator in an exam environment to practice better
How to Use the CAT Scientific Calculator Online
Mastering the CAT Scientific calculator online is crucial for saving time during the quantitative aptitude and data interpretation sections. Since candidates cannot bring physical calculators, practicing with a CAT Scientific calculator online free helps you get accustomed to the exact interface you'll face on test day. Our virtual CAT calculator replicates the exact functionality, including basic arithmetic, square roots, and reciprocals.
You might wonder where to find a reliable CAT Scientific calculator app or if you can do a CAT calculator download for PC. While you cannot download the official exam calculator, our CAT Scientific calculator free tool right on this page is the perfect alternative. By using it alongside our CAT Previous Year Papers and CAT Formulas & Revision Notes, you can simulate the real exam environment perfectly.
Why Practice with the Onscreen Calculator for CAT?
- Improved Speed: Familiarity with the mouse-based input speeds up complex calculations.
- Accuracy: Avoid silly manual errors in critical Data Interpretation (DI) and Quant questions.
- Exam Strategy: Knowing when to use the calculator versus mental math is a skill best learned through Free CAT Preparation mock tests.
Don't waste time searching for a CAT on screen calculator download or a CAT Scientific calculator download. Simply bookmark this page and practice your calculations while checking your readiness with our CAT Diagnostic Test.
Guide to Mastering the CAT On-Screen Calculator
The CAT on-screen calculator is a basic digital calculator. While it is highly advised to rely on mental math for basic calculations to maintain your speed, knowing how to efficiently use the on-screen calculator is crucial for computationally intensive Data Interpretation and Logical Reasoning (DILR) sets. Here is a guide to mastering its features and avoiding common pitfalls:
1. Unary Operations (Roots, Reciprocals, Plus/Minus)
Unlike writing on paper, you must enter the number before applying the operator.
- To calculate the square root of 32, type
32and then press therootbutton. - To calculate 4√2, type
2, pressroot, and then multiply by4.
2. Avoiding Common Division and BODMAS Mistakes
- Multiple numbers in the denominator: The calculator processes inputs strictly sequentially. If you are calculating 4 / (3 × 2), typing
4 / 3 * 2will multiply the entire fraction by 2, incorrectly giving you 2.66. You must use a division sign for every subsequent number in the denominator. The correct input is4 / 3 / 2. - Denominator groupings: If you want to calculate 3 / (2 + 3), typing
3 / 2 + 3will incorrectly give you 4.5. Instead, you should calculate the denominator first (2 + 3), use thereciprocalbutton to invert it, and then multiply by3.
3. Percentages
To find a percentage, such as 12.5% of 56, type 12.5, press the % button, and then type 56.
4. Mastering Memory Functions
Memory functions allow you to perform long calculations in a single step without needing to write intermediate numbers down on paper.
- MS (Memory Save): Saves the current value on your screen for future calculations. The calculator can only hold one value at a time, so pressing MS again will overwrite the older value with the new one.
- MR (Memory Recall): Brings the saved value back into your current calculation. For example, if you want to divide your current screen value by the saved number, you press
/and thenMR. - MC (Memory Clear): Clears the currently saved value out of the memory.
- M+ (Memory Plus): Adds the number currently on the screen to the existing value stored in the memory.
- M- (Memory Minus): Subtracts the current screen value from the stored memory value.
Pro-Tip for Weighted Averages:
The M+ button is incredibly efficient for complex fractions like weighted averages, where you need to sum a numerator and a denominator simultaneously. Instead of calculating the numerator and denominator separately, you can enter your first weight, press MS to save it to memory, and then calculate its part of the numerator. When you get to the next weight, press M+ to add it to your running denominator stored in the memory, and then continue multiplying your numerator. At the very end, simply divide your total numerator by MR to get the final answer instantly.




