Hex to IP Converter

Hex to IP Converter

Convert hexadecimal numbers into dotted IPv4 addresses and IPv4 addresses back into hex. Paste one value per line: C0A80001 becomes 192.168.0.1, 0x7F000001 becomes 127.0.0.1, and 08080808 becomes 8.8.8.8. Switch to IP to Hex to get the eight-digit hex form of any address.

How an IPv4 address maps to hex

An IPv4 address is a 32-bit number split into four bytes. Each byte (0–255) is exactly two hex digits (00–FF), so the whole address is eight hex digits:

Joined together this gives C0A80001. Converting back simply splits the hex string into pairs and converts each pair to decimal.

Accepted input formats

• A continuous hex number of up to eight digits: C0A80001 or c0a80001.
• With a prefix: 0xC0A80001.
• Byte-separated: C0.A8.00.01, C0:A8:00:01, C0 A8 00 01, or 0xC0.0xA8.0x00.0x01.
• Short values are padded on the left, so FF is 0.0.0.255.

Where hex IP addresses appear

• Linux /proc/net/tcp and /proc/net/route store addresses in hex – note that these files use little-endian byte order, so 0100007F must be reversed with Reverse Hex to 7F000001 before converting to 127.0.0.1.
• Packet captures and hex dumps show IP headers as raw bytes.
• Obfuscated URLs such as http://0xC0A80001/ are valid in most browsers and are used in phishing and security testing.
• PXE boot and TFTP – PXELINUX looks for configuration files named after the client IP in hex, e.g. C0A80001.

Output options

In IP-to-hex mode choose uppercase or lowercase digits, a 0x prefix, and dotted output (C0.A8.00.01). Other formats are available in the Decimal to IP, Binary to IP, and Octal to IP converters.