Standard Calculator
Free online basic calculator with complete keyboard support, calculation history, and clean display.
⌨ Keyboard Enabled(0-9, +, -, *, /, Enter, Backspace, Esc)
🕒Calculation History
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How it works
The Standard Calculator provides quick, reliable everyday arithmetic with addition, subtraction, multiplication, and division.
Supports full desktop and mobile keyboard shortcuts, including standard number keys, operators, Enter for equals, Backspace, and Escape to clear.
Calculations are automatically recorded in your local Calculation History panel so you can review previous steps or click any previous answer to reuse it.
All math is evaluated instantly in client-side JavaScript without server lag or tracking.
Frequently asked questions
- Can I use my computer's keyboard with this calculator?
- Yes. Type numbers, operators (+, -, *, /), Enter or = for the answer, Backspace to delete a digit, and Escape to clear.
- Is my calculation history saved?
- Yes, your recent calculations are saved in your browser's local storage so you can review or recall past results during your session.
- How do I toggle positive and negative numbers?
- Click the ± button to switch between positive and negative numbers on the active display.
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