Decimal To Binary Conversion Online Calculator

Decimal to binary conversion online calculator

How To Convert Decimal to Binary

Binary to Decimal to Hexadecimal Converter

Can convert negatives and fractional parts too.


(The old flash version is here. You can also contact us with any suggestions.)


Just type in any box, and the conversion is done "live".

Accuracy is "unlimited" between binary and hexadecimal (and vice versa), and is up to 20 digits for decimals.

Binary Format

We now allow for several formats of binary data:

Number As a standard number (default): 101.01 
0001 Leading/trailing zeros, to match hexadecimal: 0101.0100
signed 8-bit twos-complement signed 8-bit 11111111
signed 16-bit twos-complement signed 16-bit (16 bits)
signed 32-bit twos-complement signed 32-bit (32 bits)

Other Bases

You can convert to other bases (such as base-3, base-4, octal and more) using Base Conversion


Binary Decimal and Hexadecimal NumbersHexadecimal / Decimal ColorsBinary Number SystemDecimal Number SystemHexadecimal Number SystemHexadecimal Drum MachineBase Conversion Method

Copyright © 2018

Decimal to binary conversion online calculator