Binary to Decimal Converter

Convert binary numbers to decimal instantly. Enter 0s and 1s and get the exact decimal value. Free, instant, no sign-up.

Your result will appear here.

How to use Binary to Decimal Converter

  1. Type or paste a binary number (only 0s and 1s).
  2. Click Convert to see the decimal equivalent.
  3. Copy the result or convert another number.

Note: this tool runs in your browser. Nothing is uploaded.

Frequently Asked Questions

What is 1010 in decimal?

1010 in binary equals 10 in decimal (8 + 0 + 2 + 0). Type any binary number into the converter to see its decimal value instantly.

How does binary to decimal conversion work?

Each binary digit is a power of 2, counted from the right starting at 2⁰. Add the powers where the digit is 1: for example 1010 = 8 + 2 = 10.

Can I convert long binary numbers?

Yes. The converter handles binary numbers of any reasonable length, as long as they contain only 0s and 1s.

Is this binary converter free?

Yes, it is 100% free with no sign-up, and it runs entirely in your browser.