What is 1011 in decimal?

1011₂ converted to decimal is 11₁₀. The place-value working for these exact bits is below — or try other bits in the binary to decimal converter.

1011₂ = 11₁₀

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Binary₂ (from)

Only 0–1. Type here — the answer appears instantly, no button to press.

Decimal₁₀ (to)

Quinary₅

Octal₈

Hexadecimal₁₆

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Give each bit its place value — 1, 2, 4, 8 and so on, doubling from the right — then add up the places where the bit is 1.

Bit	Position	Place value	Bit × place
1	3	8	8
0	2	4	0
1	1	2	2
1	0	1	1

Add the last column: 8 + 2 + 1 = 11. So 1011₂ = 11₁₀.

In short: 1011₂: 1×8 = 8 → +0×4 = 8 → +1×2 = 10 → +1×1 = 11

How do you convert 1011 to decimal?

Use place values. The 1 bits sit at place values 8, 2, 1, and 8 + 2 + 1 = 11. So 1011₂ = 11₁₀.

What is 1011 in hexadecimal?

1011₂ is B₁₆. Group the bits in fours from the right and read each group as one hex digit — or check the 11₁₀ = B₁₆ conversion in the boxes above.