IP ↔ Binary / Hex

IP to Binary/Hex Converter

This tool converts IPv4 and IPv6 addresses to binary, hexadecimal and decimal formats with per-octet breakdown (IPv4) or 16-bit group breakdown (IPv6).

Use cases

• Subnet mask calculations: /24 = 11111111.11111111.11111111.00000000;
• Working with iptables, packet filters and firewall rules;
• Understanding IPv6 address structure and ULA/Link-Local addressing;
• Low-level network application debugging.

Frequently Asked Questions

• How do I convert IP address 192.168.0.10 to binary and hexadecimal?

  Enter the address in the converter field. The result: binary — 11000000.10101000.00000000.00001010, hexadecimal — C0.A8.00.0A. The tool splits the IP into 4 octets and converts each one separately, then combines them into the final string.

• Does the converter support abbreviated IPv6 addresses such as fe80::1?

  Yes, the tool automatically expands any abbreviated IPv6 notation. You enter fe80::1, and the system fills in all omitted zero groups, producing the full 128-bit binary representation and the expanded hex format.

• Why do I see a large decimal number like 3232235521 when converting an IPv4 address?

  That is the integer (uint32) representation of the 32-bit address, calculated as: (Octet1 × 16777216) + (Octet2 × 65536) + (Octet3 × 256) + Octet4. This form is commonly used in databases and firewall rules to simplify address comparisons.