10 In Binary

10 in binary is 1010. Full conversion of 10 (decimal) to binary 1010, decimal 10 and hex A.

How this conversion works

Ten in binary is 1010: 8 + 2. Beginners often expect "10" to stay "10", but in base two the digit 2 does not exist, so counting rolls over much sooner.

Each base just uses a different set of digits for the same quantity. Reading 10 as a decimal number gives the decimal value 10; expressing that same value in base two, eight or sixteen produces the rows above. To convert any number between bases — including custom bases from 2 to 36 — use the number base converter.