Binary Converter — Decimal, Octal & Hexadecimal
Convert numbers between decimal, binary, octal, and hexadecimal instantly. Type in any field and all formats update in real time.
How to Use the Binary Converter
Simply type a number into any of the four fields — decimal, binary, octal, or hexadecimal — and the other three update automatically. There is no button to click. The conversion happens instantly as you type.
This tool is useful for programmers debugging low-level code, students learning number systems, network engineers working with IP addresses and subnet masks, and anyone dealing with digital systems where different radices are used.
Number System Reference
| System | Base | Digits | Example |
|---|---|---|---|
| Decimal | 10 | 0-9 | 255 |
| Binary | 2 | 0, 1 | 11111111 |
| Octal | 8 | 0-7 | 377 |
| Hexadecimal | 16 | 0-9, A-F | FF |
Frequently Asked Questions
A binary converter lets you convert numbers between decimal (base-10), binary (base-2), octal (base-8), and hexadecimal (base-16) number systems. It is essential for programmers, students, and anyone working with digital systems.
To convert decimal to binary, repeatedly divide the number by 2 and record the remainders. Read the remainders from bottom to top to get the binary equivalent. Our tool does this instantly.
Hexadecimal is more compact than binary. A single hex digit represents four binary digits (bits). Programmers use hex to represent memory addresses, color codes, and machine code because it is shorter and easier to read than long binary strings.
Yes, completely free with no limits, no signup, and no uploads. Everything runs in your browser.
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