Online calculator
History
No calculations yet. The last 50 calculations show here.
A free and fast calculator. Add, subtract, multiply and divide, or change to the scientific mode. It works on phones and computers.
How to use it
- Press the keys, or type on your keyboard.
- Press = to show the result.
- Press ١٢٣ or 123 to change the digits.
- Press a line in the history to use its result.
Questions
How do I calculate a percentage on the calculator?
Type a number and press %. The number 10 and % gives 0.1. In 50 + 10%, the result is 55, because the percent is of 50. For more, open the percentage calculator.
How do I change between Arabic and Western digits?
Press ١٢٣ or 123 above the display. The digits change in the display and in the history. Your device saves your choice.
Where is the history saved?
The history is saved in your browser, on your device. It keeps the last 50 calculations. It is not sent to a server. You can remove it with the clear history button.
How do I use the scientific calculator?
Press Scientific above the display. The keys for sine, cosine, logarithm, square root and power show. Press DEG or RAD to choose degrees or radians.
Can I use my keyboard?
Yes. Type digits in the Arabic or Western form, and use + - * / ^ ( ) %. Enter shows the result. Backspace deletes. Escape clears all.