This free online binary to decimal converter instantly translates any binary number (made up of only 0s and 1s) into its decimal equivalent. Enter a binary value below to see the converted result right away.
How to Use the Binary to Decimal Converter
Type a binary number (only digits 0 and 1) into the "Enter Binary Number" field.
Click "Convert to Decimal" to see the equivalent decimal value.
If you enter an invalid character, correct the input and convert again.
Frequently Asked Questions
The tool validates that your input contains only 0s and 1s, then parses it as a base-2 number, converting it to its base-10 (decimal) equivalent.
Only the digits 0 and 1 are allowed. Any other character, including spaces or letters, is treated as invalid.
The calculator shows an alert asking you to enter a valid binary number containing only 0s and 1s, and clears any previous decimal result.
Yes, it's completely free and requires no sign-up.