Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal formats!
Conversions
255
1111 1111
0b11111111
377
0o377
FF
0xFF
Features
- Binary conversion
- Octal conversion
- Decimal conversion
- Hexadecimal conversion
- Instant results
- Copy any format
How to Use
- 1Select input base
- 2Enter your number
- 3View all conversions
- 4Copy the format you need
Frequently Asked Questions
What is binary?
Base 2 numeral system using only 0 and 1. Used by computers at the hardware level.
What is hexadecimal?
Base 16 using 0-9 and A-F. Common in programming for colors, memory addresses.
What is octal?
Base 8 using digits 0-7. Sometimes used in Unix file permissions.
Why use different bases?
Hex is compact for binary data, octal for permissions, decimal for humans.
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