Learn how to use Windows Calculator to convert Decimal to Binary in Windows 11/10. ... You will see Hex (Hexadecimal), Dec (Decimal), Oct (Octal) and Bin (Binary) radio buttons.

While the decimal numbering system allows any digit in a number to have any of ten values (0-9), digits in hexadecimal numbers can have 16 (0-F), digits in octal numbers only eight (0-7) and ...

It's simple: I specified that I wanted octal (base-8) output, but by using the leading zero, I also indicated that I was specifying a value in octal too. Ergo, 0500 = 500. That's nice, but no binary, ...