Quick Presets:
Universal Number Base Converter
Convert numbers between any base from 2 to 36
Our free Universal Number Base Converter allows you to convert numbers between any base from 2 to 36. Whether you need to convert binary to hexadecimal, decimal to octal, or any other combination, this tool makes it instant and easy. Perfect for programmers, students, and anyone working with different number systems. 100% free with client-side processing for complete privacy.
What are Number Bases?
A number base (or radix) is the number of unique digits used to represent numbers in a positional numeral system. The most common bases are Binary (base 2), Octal (base 8), Decimal (base 10), and Hexadecimal (base 16). This converter supports all bases from 2 to 36, using digits 0-9 and letters A-Z for higher bases.
Features
Instant Conversion
Convert between any bases in milliseconds
Universal Support
All bases from 2 to 36 supported
Quick Presets
One-click presets for common conversions
Swap Bases
Instantly swap from and to bases
Privacy First
All processing happens in your browser
100% Free
No limits, no registration required
Common Use Cases
Programming
Convert between number systems for low-level programming, bit manipulation, and memory addresses
Education
Learn and practice number system conversions for computer science courses
Cryptography
Work with hexadecimal representations of encrypted data and hashes
Web Development
Convert color codes, Unicode values, and other web-related numbers
How to Use
- 1. Select Bases: Choose your "From Base" and "To Base" from the dropdowns (2-36)
- 2. Use Presets: Or click a quick preset button for common conversions
- 3. Enter Number: Type your number in the input field
- 4. Convert: Click "Convert Number" to see the result
- 5. Copy Result: Click "Copy" to copy the converted number
Conversion Examples
Decimal to Binary:
255 (Base 10) 11111111 (Base 2)
Decimal to Hexadecimal:
255 (Base 10) FF (Base 16)
Binary to Hexadecimal:
11111111 (Base 2) FF (Base 16)
Decimal to Base 36:
1000 (Base 10) RS (Base 36)
Frequently Asked Questions
What is the highest base supported?
This converter supports all bases from 2 to 36. Base 36 uses digits 0-9 and letters A-Z, providing 36 unique symbols.
How do bases higher than 10 work?
Bases higher than 10 use letters A-Z to represent values 10-35. For example, in hexadecimal (base 16), A=10, B=11, C=12, D=13, E=14, F=15.
Can I convert negative numbers?
Yes, the converter handles negative numbers. The negative sign is preserved during conversion.
Is my data secure?
Absolutely! All conversions happen entirely in your browser using JavaScript. Your numbers never leave your device or get sent to any server.