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IP Address Converter

Convert IPv4 addresses between dotted, integer, hex and binary, and expand or compress IPv6.

IPv4 as dotted, integer, hex (0x…) or 32-bit binary — or any IPv6 address.

Result

IPv4 (dotted decimal)

192.168.1.10

Integer
3232235786
Hexadecimal
0xC0A8010A
Binary
11000000.10101000.00000001.00001010
IPv4-mapped IPv6
::ffff:192.168.1.10

Runs in your browser — nothing you enter is sent to a server.

How the IP Address Converter works

An IPv4 address is a 32-bit number usually written as four bytes in decimal. Enter it in any form — dotted, a plain integer, hexadecimal or 32 binary digits — to see all the others and its IPv4-mapped IPv6 form. For IPv6, the converter shows both the full 8-group form and the shortest standard form (RFC 5952).

Formulas

IPv4 as an integer

a × 256³ + b × 256² + c × 256 + d

IPv6 compression

drop leading zeros; replace the longest run of two or more zero groups with ::

Examples

192.168.1.10

= 3,232,235,786 = 0xC0A8010A = 11000000.10101000.00000001.00001010.

2001:db8:0:0:0:0:2:1

Compresses to 2001:db8::2:1.

Frequently asked questions

Why convert an IP to an integer?

Databases and firewalls often store addresses as numbers so ranges can be compared quickly.

Can :: appear twice?

No — it would be ambiguous how many zero groups each stood for.

What is an IPv4-mapped IPv6 address?

A way to write an IPv4 address inside IPv6: ::ffff: followed by the IPv4 address.

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