Basic Calculator: Free Online Math Calculator

Sometimes you just need a simple calculator that works. No fuss, no complex features — just basic arithmetic (add, subtract, multiply, divide) with a clean interface that works on desktop and mobile.

How to Use Basic Calculator

• 1.

  Click or type numbers

• 2.

  Select an operation (+, -, ×, ÷)

• 3.

  Press = or Enter for the result

• 4.

  Use C to clear or ← to delete

Key Features

• Clean, responsive interface
• Keyboard support
• Decimal and negative number support
• Memory functions

When to Use This Tool

• •

  Quick everyday calculations

• •

  Students doing homework

• •

  When your phone calculator is not handy

• •

  Simple arithmetic verification

Frequently Asked Questions