ADVERT

🔁 Base Converter

Convert numbers between bases 2-36. Supports binary, octal, decimal, and hexadecimal formats.

Base Converter

Convert numbers between different bases (from 2 to 36). Commonly used for binary, octal, decimal, and hexadecimal.

From base

To base

→

Number in base 10

Converted to base 16

FF

Translate colour values between hexadecimal, decimal, and binary when tweaking CSS or microcontroller palettes.
Check bit masks or permissions flags by switching between base 2 and base 10 to understand the underlying bits.
Convert integers before storing them in systems that expect a specific radix, such as database keys or shortened URLs.

Use the quick base buttons to keep common conversions consistent and avoid mistyping the radix.
When pasting long numbers, verify spacing or prefixes like 0x are removed—they can invalidate the input.
Copy the result straight into your IDE or documentation to maintain the uppercase formatting shown on screen.

ADVERT

Convert HEX to RGB and RGB to HEX with live preview. Useful for designers, developers, and anyone working with colors.

Safely encode or decode URLs to make them browser-friendly. Convert special characters and protect links from errors.

Convert text to Base64 and decode Base64 back to text. Perfect for developers, security, and encoding binary data.

Convert between units of length, weight, temperature, and more. Simple online conversion calculator.

Convert men's and women's shoe sizes between US, UK, EU, centimetre, and Japanese systems instantly.

Convert international clothing sizes for men and women across US, UK, EU, and body measurement ranges.

Enter a waist measurement to calculate the recommended belt length, international letter size, and EU belt number.

Convert ring sizes between US, UK, and EU scales and view the matching inner diameter and circumference in millimetres.

ADVERT