Convert between Binary, Decimal, Octal, and Hexadecimal instantly. Type in any field and all others update in real-time. Includes a quick reference table.
How to use this tool
Type a number in any of the four fields — Decimal, Binary, Octal, or Hexadecimal.
All other fields update instantly in real-time as you type. No button to press.
Click Copy next to any field to copy that format to your clipboard.
Check the info row for bit length, bytes, nibbles, and signed 8-bit value. Use the reference table to learn the systems.
This converter is useful for computer science students learning number systems, software developers debugging low-level code and memory addresses, web developers converting hex color codes, network engineers working with IPv6 addresses and MAC addresses, electronics engineers reading register values and bit fields, and anyone who needs to quickly convert between binary, decimal, octal, and hexadecimal number systems.