Online Calculator

Perform mathematical calculations with our free online calculator. Supports basic arithmetic, percentages, and keyboard input.

Calculator

💡 Tip: You can use your keyboard for input

Complete Guide to Our Online Calculator

Calculator Features

Basic arithmetic operations (addition, subtraction, multiplication, division)
Percentage calculations with the % button
Sign change functionality (±) for positive/negative numbers
Parentheses support for complex expressions
Calculation history to track your work
Copy results to clipboard with one click
Full keyboard support for faster input
Error handling and input validation
Responsive design for all screen sizes

Keyboard Shortcuts

Numbers (0-9): Input digits
+, -, *, /: Arithmetic operations
Enter or =: Calculate result
Escape or C: Clear calculator
Backspace: Delete last character
. (period): Decimal point
( and ): Parentheses
%: Percentage calculation

How to Use the Calculator

Our online calculator is designed for ease of use. Click the number buttons to input values, use operation buttons for calculations, and press equals (=) to get results. The calculator displays both your current equation and the result, making it easy to track your calculations.

For percentage calculations, enter a number and press the % button. For example, "50%" will calculate 50/100 = 0.5. Use the ± button to change the sign of the current number.

Advanced Features

History: View and reuse previous calculations
Copy Function: Copy results directly to clipboard
Error Handling: Clear error messages and invalid inputs
Parentheses: Support for complex mathematical expressions
Precision: Handles large numbers and decimal calculations

Perfect For

Students working on math homework
Professionals doing quick calculations
Shoppers calculating discounts and taxes
Anyone needing a reliable calculator tool

Why Choose Our Online Calculator?

Our calculator combines simplicity with powerful features. Unlike basic calculators, it offers calculation history, keyboard support, and advanced error handling. It's completely free, requires no installation, and works on any device with a web browser. The responsive design ensures it works perfectly on desktop computers, tablets, and smartphones.

Whether you're a student, professional, or just need to do some quick math, our calculator provides the reliability and features you need. The clean interface focuses on functionality while remaining accessible to users of all technical levels.

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