Octal（源）
八进制为基数 8（0–7）。用于 Unix 文件权限。
| 十进 | 十六进 | 八进 | 二进 |
|---|---|---|---|
| 0 | 0 | 0 | 0000 |
| 1 | 1 | 1 | 0001 |
| 2 | 2 | 2 | 0010 |
| 3 | 3 | 3 | 0011 |
| 4 | 4 | 4 | 0100 |
| 5 | 5 | 5 | 0101 |
| 6 | 6 | 6 | 0110 |
| 7 | 7 | 7 | 0111 |
| 8 | 8 | 10 | 1000 |
| 9 | 9 | 11 | 1001 |
| 10 | A | 12 | 1010 |
| 11 | B | 13 | 1011 |
| 12 | C | 14 | 1100 |
| 13 | D | 15 | 1101 |
| 14 | E | 16 | 1110 |
| 15 | F | 17 | 1111 |
Base58（目标）
Base58 避免易混淆字符（0, O, I, l）。用于比特币地址。
| 索引 | 字符 |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 6 |
| 6 | 7 |
| 7 | 8 |
| 8 | 9 |
| 9 | A |
| 10 | B |
| 11 | C |
| 12 | D |
| 13 | E |
| 14 | F |
| 15 | G |
| 16 | H |
| 17 | J |
| 18 | K |
| 19 | L |
| 20 | M |
| 21 | N |
| 22 | P |
| 23 | Q |
| 24 | R |
| 25 | S |
| 26 | T |
| 27 | U |
| 28 | V |
| 29 | W |
| 30 | X |
| 31 | Y |
| 32 | Z |
| 33 | a |
| 34 | b |
| 35 | c |
| 36 | d |
| 37 | e |
| 38 | f |
| 39 | g |
| 40 | h |
| 41 | i |
| 42 | j |
| 43 | k |
| 44 | m |
| 45 | n |
| 46 | o |
| 47 | p |
| 48 | q |
| 49 | r |
| 50 | s |
| 51 | t |
| 52 | u |
| 53 | v |
| 54 | w |
| 55 | x |
| 56 | y |
| 57 | z |