Convert Decimal to Binary Online
Type a decimal number and read its binary representation right away, along with octal and hexadecimal. Every field stays in sync, so you can also go from binary or hex back to decimal in the same view.
Number Base Converter
Convert numbers between decimal, binary, octal, and hexadecimal
Custom Base Converter (Base 2-36)
Quick Reference (0 - 15)
| Decimal | Binary | Octal | Hex | ASCII |
|---|---|---|---|---|
| 0 | 0000 | 0 | 0 | NUL |
| 1 | 0001 | 1 | 1 | CTRL-A |
| 2 | 0010 | 2 | 2 | CTRL-B |
| 3 | 0011 | 3 | 3 | CTRL-C |
| 4 | 0100 | 4 | 4 | CTRL-D |
| 5 | 0101 | 5 | 5 | CTRL-E |
| 6 | 0110 | 6 | 6 | CTRL-F |
| 7 | 0111 | 7 | 7 | BEL |
| 8 | 1000 | 10 | 8 | BS |
| 9 | 1001 | 11 | 9 | TAB |
| 10 | 1010 | 12 | A | LF |
| 11 | 1011 | 13 | B | CTRL-K |
| 12 | 1100 | 14 | C | CTRL-L |
| 13 | 1101 | 15 | D | CR |
| 14 | 1110 | 16 | E | CTRL-N |
| 15 | 1111 | 17 | F | CTRL-O |
Quick Start
- 1Enter your number in the decimal field
- 2Read the binary value in the binary field
- 3Check the octal and hexadecimal values alongside it
- 4Copy any result with the copy button
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Looking for FAQs and advanced options? Visit the full Number Base Converter page →