1. Enter your input
Paste text, code, data, or the value you want to inspect.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal formats. Paste a value in one base and instantly compare the equivalent values used in programming, debugging, and computer science exercises.
2. Run the tool
Format, encode, decode, validate, test, or generate the result instantly.
3. Copy the output
Use the cleaned result in your code, docs, API workflow, or notes.
Enter a number above to see conversions to all bases
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When to convert number bases
Base conversion is useful for binary, octal, decimal, and hexadecimal values in programming, debugging, bit masks, memory addresses, and computer science exercises.
Popular base conversion searches
- binary to decimal
- hex to decimal
- decimal to binary
- number base converter
Number Base Converter FAQ
What bases does this converter support?
It supports binary, octal, decimal, and hexadecimal.
Why do programmers use hexadecimal?
Hexadecimal is compact and maps neatly to binary, making it common for colors, memory, bytes, and low-level values.
Can I convert decimal to binary?
Yes. Enter a decimal value and read the binary result.