Number Base Converter
Description
Quickly convert numbers between binary, hexadecimal, decimal, and octal bases. Supports large numbers and real-time calculations for programmers and engineers.
About Number Base Converter
Programmers constantly move between number systems: hex for colors and memory addresses, binary for bitmasks and flags, octal for file permissions, and decimal for everyday math. This converter takes a value in any base and instantly shows its binary, octal, decimal, and hexadecimal equivalents. All conversions run client-side in your browser with no network calls.
How to use
- Enter the number you want to convert into the input field.
- Select the base of your input: binary, octal, decimal, or hexadecimal.
- Read the equivalent values shown for the other bases, updated in real time.
- Copy whichever representation you need into your code or documentation.
Examples
| Example | Input | Output |
|---|---|---|
| Binary to decimal | 1010 (binary) | 10 (decimal) |
| Decimal to hexadecimal | 255 (decimal) | FF (hex) |
Frequently asked questions
Which number bases are supported?
The tool converts between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16), which are the bases most commonly used in programming and digital electronics.
Are hexadecimal letters case-sensitive?
No. Hexadecimal digits A through F can be entered in either uppercase or lowercase, so FF and ff represent the same value, which is 255 in decimal.
Can it handle large numbers?
Yes. The converter supports large integer values, so you can work with wide bitmasks, addresses, and identifiers without losing precision.
Does converting bases change the underlying number?
No. Binary, octal, decimal, and hexadecimal are just different written representations of the same integer; the value itself never changes when you switch bases.