Number Base Converter

Convert any number between any bases from base 2 to base 36 — enter a value in your chosen base and see binary, octal, decimal, hex and more instantly.

What Does This Tool Do?

Convert any number between bases 2 through 36 — enter your number in any base and see the value in binary, octal, decimal, duodecimal, hexadecimal, base-20, base-32 and base-36 simultaneously.

Key Features

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8 Base Outputs
Binary to base-36, all shown at once.
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Live
Updates as you type.
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Custom Base
Convert from any base 2–36.
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Click to Copy
Click any card to copy.

How to Use

  1. Enter your number.
  2. Select the base it is currently in.
  3. All 8 common bases appear instantly.
  4. Click any result to copy it.

Frequently Asked Questions

What bases are included?▾
Binary (2), Octal (8), Decimal (10), Duodecimal (12), Hexadecimal (16), Vigesimal (20), Base-32, Base-36. Use custom to convert from any other base.
What characters are used above base 10?▾
Digits 0–9 then A–Z for values 10–35. E.g. base-16 uses 0–9 and A–F. Base-36 uses 0–9 and A–Z and can encode alphanumeric strings.
What is base 36 used for?▾
Base-36 is used for URL shorteners, case-insensitive alphanumeric codes, and compact ID generation. It encodes larger values in fewer characters than decimal or hex.

Complete Guide to Number Base Converter

When To Use This Tool

Use Number Base Converter whenever you need fast, accurate output without installing software. This tool is designed for speed, clarity, and repeatable results for day-to-day work.

Best Practices for Accurate Results

  • Double-check the format of your input before running the tool.
  • Test with a small sample first, then process larger data.
  • Use Related Tools to verify, convert, or transform the output.

Why Users Prefer AdeDX

AdeDX tools are browser-based, free to use, and built to work across desktop and mobile devices. Most processing happens directly in your browser for fast performance and improved privacy.