Mathematical Calculator

About This Calculator

This free online calculator helps you perform basic arithmetic operations quickly and accurately. Perfect for everyday calculations, it features:

  • Basic arithmetic operations (addition, subtraction, multiplication, division)
  • Decimal point support for precise calculations
  • Clear and backspace functions for error correction
  • Calculation history for tracking your work

How to Use This Calculator

Basic Operations
  • Addition (+): Click numbers followed by the + button
  • Subtraction (-): Click numbers followed by the - button
  • Multiplication (×): Click numbers followed by the × button
  • Division (÷): Click numbers followed by the ÷ button
Special Functions
  • Clear (C): Clears the entire calculation
  • Backspace (⌫): Deletes the last entered digit
  • Decimal Point (.): Adds a decimal point for precise calculations
  • Equals (=): Computes the final result
Tips for Better Results
  • Use the history feature to track your calculations
  • Clear the calculator before starting a new calculation
  • Double-check your entries before pressing equals
  • Use the backspace button to correct single-digit errors

Frequently Asked Questions

Q: How accurate is this calculator?

This calculator provides accurate results for basic arithmetic operations, supporting decimal calculations up to 8 decimal places.

Q: Can I use keyboard input?

Yes, you can use your keyboard's number keys and operation keys (+, -, *, /) for input. The Enter key works as the equals button.

Q: Is there a calculation history limit?

The calculator stores your last 10 calculations in the history section. The history is cleared when you refresh the page.