Base 16 to base 2

Convert Hexadecimal to Binary

Convert base 16 values to base 2. Integers remain exact even when they exceed JavaScript's ordinary safe-number limit.

Number From base

Result

101010

To base

2A₁₆ = 101010₂

Same value in common bases

Base	Value

Method

How to convert base 16 to base 2

Each hexadecimal digit is evaluated by its power of 16. The exact value is then repeatedly divided by 2 to produce the destination digits.

value₁₀ = sum(digit x 16^position)

For fractional digits, the converter keeps an exact rational numerator and denominator, then generates up to 32 destination digits. An ellipsis marks a repeating or longer expansion.

Examples

Hexadecimal to Binary table

Hexadecimal (base 16)	Binary (base 2)
1	1
2	10
A	1010
2A	101010
64	1100100
FF	11111111
400	10000000000

Continue converting

Binary to HexadecimalReverse conversion Binary to decimalBase 2 to base 10 Decimal to hexadecimalBase 10 to base 16