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1011 in Decimal

Binary 1011 equals 11 in decimal.

1011 in all number bases

Decimal11
Hexadecimal0xB
Binary1011
Octal13

How 1011 converts from binary to decimal

Multiply each digit by 2 raised to its position (starting at 0 from the right), then add the results:

1× 23 = 1 × 8 = 8
0× 22 = 0 × 4 = 0
1× 21 = 1 × 2 = 2
1× 20 = 1 × 1 = 1

Sum: 11