About Basic Calculator
The Basic Calculator handles everyday arithmetic — addition, subtraction, multiplication, division and percentages — with a clean, keyboard-friendly interface. It's there when you need a quick answer without hunting for your phone or opening a spreadsheet.
The large display and full keyboard support make it faster than most built-in OS calculators: type numbers and operators directly, press Enter for the result and Escape to clear. It works offline once loaded and never shows ads inside the calculation area.
How to Use the Basic Calculator
- Click the buttons or type numbers and operators (+, -, *, /) on your keyboard.
- Press Enter or = to calculate the result.
- Press Escape or C to clear and start a new calculation.
Features
- Addition, subtraction, multiplication, division and percentage
- Full keyboard support
- Large, readable display
- Instant results with no page reloads
Frequently Asked Questions
Can I use my keyboard?
Yes — type digits and operators directly, press Enter for equals and Escape to clear. No mouse needed.
Does it follow order of operations?
Calculations are evaluated as entered, like a standard pocket calculator. For multi-step expressions with precedence, compute intermediate results step by step.
Is the calculator free?
Yes, the calculator is completely free with no usage limits. No signup, no account and no installation required.
Does the calculator work on mobile?
Yes. The calculator is fully responsive and works in any modern browser on phones, tablets and desktops.
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