1B in Decimal
Hexadecimal 1B equals 27 in decimal.
1B in all number bases
Decimal27
Hexadecimal0x1B
Binary0001 1011
Octal33
Try another value
Edit this value or switch its base. Your changes are calculated in your browser with exact integer arithmetic.
Input base:
Decimal
27Hex
0x1BBinary
0b11011Octal
0o33How 1b converts from hexadecimal to decimal
Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:
1× 161 = 1 × 16 = 16
B× 160 = 11 × 1 = 11
Sum: 27
This tool runs entirely in your browser - nothing you enter is uploaded or stored.