Online Calculator

A fast, simple calculator for everyday arithmetic. Supports keyboard input and keeps a history of your recent calculations.

 
0
Keyboard supported
History

Your calculations will appear here.

How to Use the Online Calculator

Works like any calculator you've used before. Click the buttons or just type on your keyboard, whichever's easier.

  1. Enter numbers by clicking or typing.
  2. Pick an operator, plus, minus, times, or divide.
  3. Hit = or Enter for the result, and it lands in the History panel on the right automatically.
  4. AC clears everything, +/- flips the sign, % converts to a percentage, and backspace deletes the last digit if you make a typo.

Keyboard Shortcuts

KeyAction
0 – 9Enter digits
+ − * /Operators
Enter or =Calculate result
BackspaceDelete last digit
EscapeClear all (AC)
.Decimal point
%Percentage

Frequently Asked Questions

Yep, full keyboard support. Numbers, the usual operators, Enter or = for the result, Backspace to delete, Escape to clear, period key for decimals.

It just divides whatever's on screen by 100. Type 75 and hit %, you get 0.75. Multiply that by 200 and you land on 150, which checks out since that's 75% of 200.

It is, sitting in your browser's local storage, so refreshing the page won't wipe it out. There's a Clear button above the history panel whenever you want a fresh start.

It is. Never asked for a card number, never will, for this or any other tool here.