Binary to Decimal

What does Binary to Decimal do?

Binary to Decimal converts binary (base-2) numbers into ordinary decimal numbers.

How to use Binary to Decimal

1. Paste or type your text into the box. The Paste button inserts what you copied, and Sample loads an example.
2. Press Convert.
3. Check the result and press Copy to use it. Reset clears everything.

When is it useful?

• Learn how computers store text and numbers
• Check homework in computer science
• Debug data in programming and networking

Example

1010 = 10; 11111111 = 255.

Good to know

• Your text is only used to create the result and is not saved.

Frequently asked questions

How does the conversion work?

Binary (base 2) writes numbers with only 0 and 1, where each position is worth twice the one to its right (1, 2, 4, 8, 16...). Decimal (base 10) is the ordinary number system with the digits 0-9.

Is Binary to Decimal free?

Yes. You can use it as often as you like without creating an account.

Is my text saved?

No. It is sent to our server only to create the result and is not stored. Like every tool on the site we keep a basic usage record (tool name, time, IP address and country); see our Privacy Policy.

Does it work on my phone?

Yes. It runs in any modern browser on a phone, tablet or computer - there is nothing to install.