Back to tools
ConvertersClient-sideNo signup

Simple Calculator

A clean, standard calculator that performs basic arithmetic operations with a built-in history and keyboard support.

Best for:Students, professionals, and anyone needing a quick, distraction-free calculation.
Privacy-first processingAll calculations are performed locally in your browser. History is saved locally using localStorage.
Loading workspace...

Guide

Usage, privacy, and related tools

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

  1. Click the on-screen buttons or use your keyboard to enter numbers.
  2. Choose an operation (+, -, *, /) and type the second number.
  3. Press equals (=) or Enter on your keyboard to get the result.
  4. 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 temperature