13 decimal to binary
13 = 1101
13 in decimal is 1101 in binary. Divide 13 by 2 repeatedly and read the remainders backwards to get 1101.
Nearby values
| Decimal | Binary |
|---|---|
| 8 | 1000 |
| 9 | 1001 |
| 10 | 1010 |
| 11 | 1011 |
| 12 | 1100 |
| 13 | 1101 |
| 14 | 1110 |
| 15 | 1111 |
| 16 | 10000 |
| 20 | 10100 |
| 24 | 11000 |
Frequently asked questions
What is 13 decimal in binary?
13 in decimal is 1101 in binary. Divide 13 by 2 repeatedly and read the remainders backwards to get 1101.
How do you work out 13 decimal by hand?
Divide 13 by 2 repeatedly and read the remainders backwards to get 1101. The reference table on this page lists the neighbouring values so you can check the result.
Convert any value
Use the full decimal to binary converter for other values, or the number base converter for all four bases at once.