How to use Windows Calculator to convert Decimal to Binary

You can use the built-in Calculator in Windows 8 / 7 to carry out Decimal to Binary conversions. The Windows Calculator file, calc.exe is located in the System32 folder. To open it, type calc.exe in the start search bar and hit Enter.

How to use Windows Calculator to convert Decimal to Binary

During the course of your working, at times, you may feel the need to convert a decimal digit into binary digit or concert a binary digit into a decimal number.

Use Windows Calculator to convert Decimal to Binary

The Windows Calculator can be operated in 4 modes – Standard, Scientific, Programmer & Statistics. To be able to use to use Windows Calculator to convert Decimal to Binary, you have to use the Programmer mode.

To change the mode, click on View and select Programmer.

You will see Hex (Hexadecimal), Dec (Decimal), Oct (Octal) and Bin (Binary) radio buttons. These are used for converting numbers between these numbering systems.

Ensure that Dec (Decimal) radio button is selected.

Now type your decimal number.

Next select the Bin (Binary) radio button. This will convert the digit from Decimal to Binary.

As an example I opted to convert 2015 into Binary, and the converted digit came to 11111011111.

Trust it works for you!

You can also add Windows Calculator to Excel Quick Access Toolbar. Take a look at the features in the Windows 10 Calculator too.

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.

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