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11 in Decimal

Binary 11 equals 3 in decimal.

11 in all number bases

Decimal3
Hexadecimal0x3
Binary0011
Octal3

Try another value

Edit this value or switch its base. Your changes are calculated in your browser with exact integer arithmetic.

Input base:
Decimal3
Hex0x3
Binary0b11
Octal0o3

How 11 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× 21 = 1 × 2 = 2
1× 20 = 1 × 1 = 1

Sum: 3

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Want to learn the method behind this tool? Read How to Convert Binary to Decimal - the full step-by-step guide.