Binary to Decimal Converter — Online & Free

Convert binary numbers (base-2) to decimal numbers (base-10) instantly with step-by-step conversion guidance.

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Decimal to Binary →Binary to Hexadecimal →Binary Calculator →

Convert Binary to Decimal Number System

This tool converts any binary code (base-2) into its equivalent base-10 decimal number. Binary numbers are widely used in computers, and decimal numbers are the standard number system used by humans.

How to Convert

  1. Enter a binary number (composed of 0 and 1) in the input box.
  2. The equivalent base-10 decimal integer will instantly generate below.
  3. Click Copy to save the decimal value to your clipboard.

About this Conversion

Binary uses two symbols (0 and 1) to represent values. Decimal uses ten symbols (0-9). The conversion computes the sum of the digits multiplied by 2 raised to their power position (e.g. 101 = 1*2^2 + 0*2^1 + 1*2^0 = 4 + 0 + 1 = 5).

Frequently Asked Questions

Can I convert fractional binary numbers?

Currently this tool is optimized for binary integers. Fractional conversion will be added in future updates.