Binary to Decimal Converter

Use this binary to decimal converter to convert a binary number into decimal form or back. Enter the number and the direction of conversion and review the equivalent binary or decimal value.

Decimal
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Binary —
Hexadecimal —
Octal —
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How it works

Each binary digit is a power of 2; hex digits are powers of 16

How to use the Binary to Decimal Converter

Start by entering the number and the direction of conversion. Keep the units consistent and check that each value belongs to the same question.

The result gives the equivalent binary or decimal value. Use only valid digits for the number system you choose. Use it as a guide and check any instructions, rules or professional advice that apply.

Frequently Asked Questions

What does this binary to decimal converter calculate?
It gives the equivalent binary or decimal value. Use only valid digits for the number system you choose.
What information should I enter?
Enter the number and the direction of conversion. Use the same units throughout so the result is easier to understand.
Why does binary use only two digits?
Binary is a base two system, so it uses zero and one.