Binary to Decimal Converter

Simple and fast binary to decimal conversion! A free online converter that lets you easily and quickly convert a binary number to decimal. Would you rather convert from decimal to binary? Click here!

Information about the Binary to Decimal Converter

• How can I convert from binary to decimal?

In the binary system, each digit represents an increasing power of 2, with the rightmost digit representing 20, the next representing 21, then 22, and so on. The value of a binary number is the sum of the powers of 2 represented by each “1” digit.

For example:

11001 = 1·2⁴ + 1·2³ + 0·2² + 0·2¹ + 1·2⁰ = 16 + 8 + 0 + 0 + 1 = 25