Number Base Converter
Enter a number in any base and convert it to decimal, hexadecimal, octal, and binary simultaneously. If the value falls within the printable ASCII range (32 through 126), the corresponding character is shown alongside the conversions.
Frequently Asked Questions
What number bases does this converter support?
This tool converts between four number bases: decimal (base 10, digits 0-9), hexadecimal (base 16, digits 0-9 and A-F), octal (base 8, digits 0-7), and binary (base 2, digits 0 and 1). These are the four bases most commonly used in computing and programming.
What is the maximum value this converter handles?
The converter supports values up to 4,294,967,295 (0xFFFFFFFF in hex), which is the maximum value of a 32-bit unsigned integer. This covers the full range needed for most ASCII, Unicode, and color code conversions.
Why do programmers use hexadecimal?
Hexadecimal is compact and maps cleanly to binary. Each hex digit represents exactly 4 binary bits, so a byte (8 bits) is always exactly 2 hex digits. This makes hex values easier to read, write, and mentally convert than long binary strings. Memory addresses, color codes, and character encodings are all conventionally written in hex.