Online Calculator
A fast basic calculator for arithmetic, percentages and parentheses with memory, history and keyboard support.
🔎 Use a fast online calculator for everyday arithmetic
Type an expression or use the keypad for addition, subtraction, multiplication, division, percentages and parentheses.
Memory controls (MC/MR/M+/M−) and recent-history buttons make it easy to reuse a result without retyping the whole expression.
- Keyboard input with Enter to calculate.
- Memory plus recent calculation history.
- Basic arithmetic, parentheses and percentages.
💡 Useful information
Free online calculator for addition, subtraction, multiplication, division, percentages and parentheses, with memory, history and keyboard support.
- Runs directly in a modern browser.
- Works on phones and desktop computers.
- Reuse it without creating an account.
ℹ️ How to use
- Type an expression or use the on-screen keypad.
- Add % or parentheses when needed, then press = or Enter.
- Review the result or click a history item to reuse it.
❔ Frequently asked questions
Does it support decimals?
Yes. Decimal numbers work with all basic arithmetic operations.
Can I reuse a previous result?
Yes. Click a history result or use the ANS key to insert the latest answer.
Is this tool free?
Yes. You can use it for free without creating an account.
Does it work on mobile?
Yes. The interface is designed for phones, desktop computers and modern browsers.