Basic Calculator
Add, subtract, multiply, divide, use percent, memory, sign changes, decimals, and keyboard input from a simple calculator keypad.
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Guide
How this basic calculator works
This basic calculator handles everyday arithmetic from a familiar keypad. It supports decimals, percent, sign changes, memory controls, and keyboard input.
Use the keypad
Enter numbers directly, then tap an operator or press a matching keyboard key.
Finish with equals
Press equals or Enter to complete the pending operation and add it to recent calculations.
Use memory
Use mc, mr, m+, and m- to store and reuse a value across calculations.
FAQs
Can I use my keyboard?
Yes. Numbers, decimal, plus, minus, multiply, divide, percent, equals, Enter, Backspace, and Escape are supported.
Where do results appear?
The current result appears inside the calculator display. Completed calculations are listed in recent calculations.
Does this support scientific functions?
No. Use the Scientific Calculator for powers, roots, logs, trigonometry, constants, and scientific notation.
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