Hexadecimal to Decimal Converter

How to use the Hexadecimal to Decimal tool

1. Enter your hex to decimal in the fields above.
2. Adjust any slider or type an exact number — the answer updates as you go.
3. Copy the result and close the tab. Nothing you entered was sent anywhere.

About the Hexadecimal to Decimal tool

Paste any hex value, with or without the 0x prefix, and read the decimal equivalent instantly, plus binary, octal and how many bits it needs.

The “bits needed” count is the smallest number of binary digits that can hold the value — useful when sizing flags, masks and register fields.

Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.

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