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Basic Calculator

Simple and reliable calculator for everyday arithmetic calculations

Calculator

Memory
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Calculation History

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Your calculations will appear here

Quick Tips

Keyboard Shortcuts

Use number keys (0-9), operators (+, -, *, /), Enter for equals, Escape to clear

Memory Functions

MS: Store current value | MR: Recall stored value | M+: Add to memory | MC: Clear memory

Percentage

Enter a number and press % to convert to percentage (e.g., 50% = 0.5)

Order of Operations

Calculator follows standard mathematical order: multiplication and division before addition and subtraction

Basic Calculator Guide

Basic Operations

  • Addition (+): Add numbers together
  • Subtraction (−): Subtract one number from another
  • Multiplication (×): Multiply numbers
  • Division (÷): Divide one number by another

Special Functions

  • AC (All Clear): Clears everything and starts fresh
  • C (Clear): Clears the current number only
  • % (Percentage): Converts number to decimal percentage
  • +/- (Toggle Sign): Changes positive to negative or vice versa

Decimal Numbers

  • Decimal Point (.): Use to enter decimal numbers
  • Example: 3.14, 0.5, 10.25
  • Precision: Results show up to 10 decimal places

Memory Functions

  • MS (Memory Store): Saves current display value to memory
  • MR (Memory Recall): Recalls the stored memory value
  • M+ (Memory Add): Adds current value to memory
  • MC (Memory Clear): Clears the stored memory value

Common Examples

  • Addition: 15 + 25 = 40
  • Subtraction: 100 - 35 = 65
  • Multiplication: 8 × 7 = 56
  • Division: 84 ÷ 12 = 7
  • Percentage: 75% = 0.75

Tips for Accuracy

  • Double-check: Verify important calculations
  • Use parentheses: For complex calculations, break them down
  • Round appropriately: Consider significant figures for your needs
  • Check units: Make sure all numbers use the same units