Best for
- Students, professionals, and anyone needing a quick, distraction-free calculation.
Privacy
All calculations are performed locally in your browser. History is saved locally using localStorage.
Quick tips
- Use the keyboard! Number pad, Enter (=), and Backspace (DEL) are fully supported.
- Click on any previous calculation in the history panel to reload its result into the current display.
- Hit Escape (Esc) to quickly clear all inputs.
How to use this tool
- Click the on-screen buttons or use your keyboard to enter numbers.
- Choose an operation (+, -, *, /) and type the second number.
- Press equals (=) or Enter on your keyboard to get the result.
- Toggle the history panel to see previous calculations or reuse their results.
Common questions
Is my calculation history private?
Yes, your history is stored strictly on your device using localStorage and never uploaded anywhere.
Can I clear my history?
Yes, just open the history panel and click the "Clear" button.
Related tools
Percentage CalculatorCalculate percentages, increases, and decreases instantlyTip CalculatorCalculate tips and split the bill easilyUnit ConverterConvert between common units of length, weight, and temperatureBinary ↔ Text ConverterConvert text to binary and binary to text instantly and privatelyColor ConverterConvert between HEX, RGB, and HSL color formats with real-time previewUnix Timestamp ConverterConvert Unix timestamps to human-readable dates and vice versa