How to Use the Basic Calculator

Our free basic calculator provides all the essential arithmetic operations you need for everyday calculations. Whether you're balancing your budget, calculating tips, or solving simple math problems, this calculator has you covered.

Calculator Features:

Basic Operations: Addition (+), Subtraction (−), Multiplication (×), Division (÷)
Decimal Support: Full support for decimal numbers and calculations
Clear Functions: Clear all (C) and clear entry (CE) for easy reset
Backspace: Remove the last entered digit or operation
History Display: See your calculation history for reference
Keyboard Support: Use your keyboard for faster input
Mobile Friendly: Touch-optimized buttons for mobile devices

How to Use:

Enter Numbers: Click number buttons or use your keyboard to enter numbers
Choose Operation: Click the operation buttons (+, −, ×, ÷) to select your operation
Continue Calculating: Enter the next number and operation as needed
Get Result: Click the equals (=) button to see your result
Start New Calculation: Use Clear (C) to start a new calculation

Keyboard Shortcuts:

Numbers: 0-9 keys for number input
Operations: +, -, *, / keys for arithmetic operations
Equals: Enter or = key to calculate result
Clear: Escape key to clear all
Backspace: Backspace or Delete key to remove last input
Decimal: . (period) key for decimal point

Common Use Cases:

Budget Calculations: Add up expenses, calculate savings, or balance accounts
Tip Calculations: Calculate tips for restaurants, services, or deliveries
Shopping Math: Calculate discounts, tax amounts, or total costs
Basic Math: Solve homework problems or practice arithmetic
Quick Calculations: Perform calculations without opening a separate app
Percentage Calculations: Calculate percentages for various purposes

Tips for Best Results:

Use the clear (C) button to start fresh calculations
Use clear entry (CE) to correct just the current number
Check your calculation history if you need to review previous steps
Use keyboard shortcuts for faster input on desktop
Double-check important calculations, especially for financial decisions
Use the backspace button to correct individual digits

Basic Calculator