Number Base Converter
Convert numbers between any base (2-36). Binary, hex, octal, decimal, BigInt, Roman numerals, IEEE 754, bit visualization & more.
Live Convert
Uppercase Hex
Group Digits
Show Bit Info
Signed Mode
Bit Width
Base:
Binary (2)
0
Octal (8)
0
Decimal (10)
0
Hexadecimal (16)
0
0
Bits Needed
0
Bytes
0
Signed
0
Two's Comp
Keyboard Shortcuts
Enter = ConvertCtrl+Shift+C = Copy AllAlt+1-5 = Switch Tab
◆ What it does
Convert numbers between any base from 2 to 36. Supports BigInt, Roman numerals, IEEE 754 float representation, two's complement, and bit-level visualization.
▸ How to use
- Enter a number and select its base (or use custom 2-36)
- See instant conversion to all common bases
- Use the Bit Visualizer to toggle individual bits
- Convert to/from Roman numerals
- View IEEE 754 float representation
▸ Why use this
- Instantly convert between binary, octal, decimal, hex
- Custom base support from base-2 to base-36
- BigInt support for arbitrarily large numbers
- Visualize bit patterns for debugging
- Roman numeral and IEEE 754 conversions
FAQ
What is Number Base Converter?
Convert numbers between any base (2-36). Binary, hex, octal, decimal, BigInt, Roman numerals, IEEE 754, bit visualization & more.
How do I use Number Base Converter?
Enter a number and select its base (or use custom 2-36) See instant conversion to all common bases Use the Bit Visualizer to toggle individual bits
Why use Number Base Converter?
Instantly convert between binary, octal, decimal, hex Custom base support from base-2 to base-36 BigInt support for arbitrarily large numbers