Binary to decimal converter
Convert binary numbers to decimal (and hex and octal) instantly. Free, works with very large numbers.
In your browser
Also with the number base converter
About this tool
Enter a binary number such as 101010 and see it in decimal (42), plus hexadecimal and octal.
How to use it
- 1 Type a number.
- 2 Choose the base it’s written in.
- 3 Read or copy it in every other base.
Questions
Is my data uploaded?
No. This tool runs in your browser, so your text and files never reach our server.
Is this tool free?
Yes. It’s free to use with no sign-up and no limits for normal use.
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