Binary to decimal converter

Binary to decimal number conversion calculator and how to convert.

Binary to decimal converter

Enter a binary number and press Convert button:

	Enter binary number:
			2
	Decimal result:
			10
	Decimal signed result:
			10

Decimal to Binary converter ►

How to convert binary to decimal

The decimal number is equal to the sum of powers of 2 of the binary number's '1' digits place:

binary number:	1	1	1	0	0	1
power of 2:	25	24	23	22	21	20

111001₂ = 1·2⁵+1·2⁴+1·2³+0·2²+0·2¹+1·2⁰ = 57

 

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See also

• Decimal to Binary converter
• Binary to Hex converter
• Conversion

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