Calculator

A powerful online calculator with basic and advanced math functions, memory operations, and keyboard support.

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About This Tool

This free online calculator app provides a comprehensive set of features for everyday and advanced mathematical calculations. It includes basic arithmetic operations (addition, subtraction, multiplication, division), memory functions (MC, MR, M+, M-), and scientific functions (square root, exponentiation, trigonometric functions, logarithms, and constants like π and e). The calculator supports keyboard input for quick operation and displays a history of calculations. With a clean, responsive interface, it works seamlessly on desktop and mobile devices.

Save your calculation history with a free account

How to Use

Enter numbers using the on-screen buttons or your keyboard.
Select operations (+, -, ×, ÷) to perform calculations.
Use memory buttons (MC, MR, M+, M-) to store and recall values.
Access advanced functions (√, x², sin, cos, log, etc.) for scientific calculations.
Press '=' or 'Enter' to compute the result, which will be displayed with a history.
Use 'Clear' (C) to reset the current input or 'All Clear' (AC) to reset everything.

Frequently Asked Questions

Find Quick Answers

Does this calculator support keyboard input?

Yes, you can use your keyboard to enter numbers, operations (+, -, *, /), and special keys like 'Enter' for equals, 'Escape' for clear, and 'm' for memory functions.

Can I use advanced math functions like trigonometry?

Absolutely! The calculator includes scientific functions such as sin, cos, tan, log, ln, square root, exponentiation, and constants (π and e).

Is there a memory feature?

Yes, it has full memory functionality: MC (Memory Clear), MR (Memory Recall), M+ (Memory Add), and M- (Memory Subtract) to store and manipulate values.

Does the calculator work on mobile devices?

Yes, the interface is fully responsive and optimized for both desktop and mobile screens, with touch-friendly buttons.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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