Binary to Decimal Converter

Binary to decimal number conversion calculator and how to convert.

Binary to decimal conversion calculator

Enter a binary number and press Convert button:

	Enter binary number:
	Decimal result:

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