🧮 Basic Calculator
Quick calculations at your fingertips. Supports keyboard input and standard operations.
⌨️ Keyboard Tip: Use +, −, ×, ÷ for operators or =/Enter to calculate. Press Backspace to delete or Escape to clear all.
Features
- ➕Addition
- ➖Subtraction
- ✖️Multiplication
- ➗Division
- 🔢Decimal Support
- ⌨️Keyboard Input
- ⌫Backspace
- 🛡️Safe Math (No eval)
Quick Tips
- •Press AC to clear all and start fresh
- •Press C to clear current input only
- •Operations are calculated left-to-right
- •Division by zero is prevented
How It Works
Safe Math
Uses safe mathematical operations without eval(). Every calculation is performed step-by-step.
Precision Control
Automatically handles floating-point precision issues to give you accurate results.
Real-time Feedback
See your calculation instantly as you type. Clear visual feedback for errors.
Keyboard Support
Use your keyboard for faster input. All standard calculator keys are supported.
Edge Case Handling
Prevents leading zeros, multiple decimals, and invalid operations like division by zero.
Mobile Friendly
Fully responsive design works perfectly on phones, tablets, and desktops.
Example Calculations
Basic Addition
Calculation
15 + 8
Result
23
Decimal Multiplication
Calculation
3.5 × 2.4
Result
8.4
Complex Expression
Calculation
100 - 25 × 2
Result
150
Division
Calculation
144 ÷ 12
Result
12