GATE Virtual Calculator
Practice with the exact virtual scientific calculator provided during the GATE exam. Same buttons, same post-fix input, same functionality as the official TCS iON calculator.
GATE Virtual Scientific Calculator
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How to Use This Calculator
This calculator uses post-fix input: enter the value first, then press the function button. For sin(30), type 30, then click sin.
Quick Reference
| Operation | Button Sequence | Result |
|---|---|---|
| sin(30) | 30 -> sin | 0.5 |
| log(1000) | 1000 -> log | 3 |
| 2^10 | 2 -> x^y -> 10 -> = | 1024 |
| sqrt(144) | 144 -> sqrt | 12 |
| cosec(30) | 30 -> sin -> 1/x | 2 |
Read our complete guide for detailed instructions on every function, or check out 15 tips and tricks to save time.
Frequently Asked Questions
Is this the official GATE calculator?
This is a replica of the official TCS iON virtual calculator. It has the same buttons, layout, and post-fix input behavior. The official version is hosted by TCS iON but is often inaccessible due to HTTP 403 errors.
Why does the calculator use post-fix input?
The TCS iON calculator requires you to enter the value first, then press the function. To calculate sin(30), type 30, then click sin. This matches the official exam calculator behavior and is different from most physical calculators.
Can I practice with keyboard input?
Yes, use the 'Keyboard: ON/OFF' toggle above the calculator. However, during the actual GATE exam, keyboard input is disabled. Practice with keyboard OFF to simulate real exam conditions.