Hexadecimal to Binary
Turn Hexadecimal numbers into Binary in your browser. Every digit is converted exactly, even for very long values, and nothing is sent to a server.
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Binary
1001010101Octal
1125Decimal
597Hexadecimal
255Spaces and underscores are ignored; 0b, 0o and 0x prefixes are supported.
Common conversions
| Hexadecimal | Binary |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 4 | 100 |
| 8 | 1000 |
| A | 1010 |
| 10 | 10000 |
| FF | 11111111 |
Leading zeros are dropped; longer values follow the same digit weights.
Frequently asked questions
How do I convert Hexadecimal to Binary?
Each Hexadecimal digit is multiplied by its place value, then the total is written using Binary digits. The table above shows the pattern for small values.
Can I convert fractions?
No. This converter works with unsigned integers only. Convert the integer part first and handle the fraction separately.
How large can the numbers be?
Up to 200 characters, which covers values far beyond 64-bit range. Precision stays exact because the conversion uses big integers.
Related conversions
Binary to Hexadecimal Hexadecimal to Decimal Hexadecimal to Octal Binary to Decimal Decimal to Binary Decimal to Hexadecimal
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