Hexadecimal Converter

Convert a number between hexadecimal, decimal, binary and octal — from any base to all the others at once.

FreeNo sign-upRuns in your browserMobile-friendly

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What does the Hexadecimal Converter do?

Hexadecimal (base 16) uses digits 0–9 and letters A–F and is common in programming, colour codes, memory addresses and MAC addresses. Choose the input base, type a value (prefixes like 0x are accepted) and get every other base plus the number of bytes needed to store it.

How to use the Hexadecimal Converter

  1. Choose the base you are entering.
  2. Type the number.
  3. Copy any converted value.

Examples

Hex to decimal

FF = 255 = 1111 1111 = 377 octal.

Decimal to hex

4096 = 0x1000.

Common use cases

  • Programming and debugging
  • Colour code maths
  • Embedded systems and networking

Features and benefits

  • Private by design — your data is processed on your device and never uploaded.
  • Free with no account, no watermark and no usage limits.
  • Works on phones, tablets and desktops in any modern browser.

Limitations to know

  • Fractions are not supported.

Frequently asked questions

What does 0x mean?

It is a prefix that marks a number as hexadecimal.

How many bits is a hex digit?

Four bits.

Is hex case-sensitive?

No, A–F and a–f are the same.

Embed this tool on your website

Add the free Hexadecimal Converter to your blog or website. Paste the code into your page’s HTML; the tool runs in your visitors’ browsers and stays up to date automatically. Please keep the credit line below the tool.

Free to use on any website. The tool runs inside an iframe served from viptools.pk; nothing your visitors type is sent to your site or ours. Preview the embedded version.

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