IP to Decimal Converter

What this tool does

IP to Decimal Converter converts an IPv4 address between its familiar dotted-quad notation (like 192.168.1.1) and its equivalent single 32-bit decimal integer, along with hexadecimal and binary representations, in either direction.

An IPv4 address is really just a 32-bit number, the familiar dotted-quad notation (four 0-255 numbers separated by dots) is just a human-readable way of writing it; databases, some APIs and low-level networking code often store or expect it as a single integer instead.

This converter goes both directions: IPv4 notation to its decimal (and hex/binary) integer equivalent, or a decimal integer back to standard dotted-quad IPv4 notation.

How to use IP to Decimal Converter

1. Choose a Direction: IPv4 → decimal or decimal → IPv4.
2. Enter the address or integer to convert.
3. Read the Decimal, Hexadecimal and Binary results.
4. Copy whichever representation your database or script expects.

Tips for better results

• Each of the four dotted-quad numbers corresponds to one byte (8 bits) of the 32-bit integer, in order: the first number is the most significant byte.
• A valid IPv4-derived integer always falls between 0 and 4,294,967,295 (2³² − 1); anything outside that range can’t represent a real IPv4 address.
• Some older systems and a handful of databases still store IP addresses as a plain integer for compact storage and fast range queries, this conversion is exactly what’s needed to work with those.
• The binary output is grouped into 4 bytes of 8 bits each (separated by dots) to make it easier to see the correspondence with the original dotted-quad notation.

Common use cases

• Converting an IP address to an integer for storage in a database column that expects a number.
• Debugging low-level networking code that represents addresses as 32-bit integers.
• Understanding the bit-level relationship between dotted-quad notation and the underlying binary address.
• Converting a decimal IP value found in a log or API response back into readable dotted-quad form.

Common mistakes to avoid

• Entering a decimal value outside the valid 0 to 4,294,967,295 range, which can’t correspond to any real IPv4 address and is flagged as an error.
• Assuming this works for IPv6 addresses; IPv6 uses 128 bits, not 32, so this specific integer conversion only applies to IPv4.
• Mixing up byte order when manually reconstructing an address from hex or binary elsewhere; this tool always uses standard big-endian (network byte order), the same order IPv4 dotted-quad notation itself uses.