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IP Address Converter online

Convert IPv4 addresses between binary, decimal, hex, and octal - runs in your browser

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by
CHUNKY
MUNSTER
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Using This IPv4 Binary Converter

  1. Choose the conversion direction: IP to binary, or binary to IP.
  2. Enter an IPv4 address (e.g. 192.168.1.1) or a 32-bit binary string.
  3. The tool shows the binary, decimal, hex, and octal representations of each octet.
  4. Use the CIDR section to see network and host portions highlighted separately.

IP Address Converter provides a fast way to translate 32-bit network addresses between dotted decimal and binary formats. Each of the four octets (0–255) is one byte of that integer value, and network engineers often need to see these as binary to understand subnet masks and routing. This 32-bit address translator handles both directions instantly in your browser.

Understanding IPv4 and Subnet Masks

The address 192.168.1.1 in binary is 11000000.10101000.00000001.00000001. A /24 mask means the first 24 bits are the network identifier and the last 8 are for hosts. Seeing this with an IP octet converter makes the CIDR prefix boundary explicit, highlighting the network bits vs host bits in different colours. This network address converter also provides the hex and integer versions for advanced protocol analysis.

Frequently Asked Questions

What is the binary of 255.255.255.0 (a /24 mask)?

11111111.11111111.11111111.00000000 - 24 consecutive 1-bits followed by 8 zero-bits. The 1-bits mark the network portion; the 0-bits mark the host portion.

What is the largest IPv4 address in binary?

11111111.11111111.11111111.11111111 = 255.255.255.255, the broadcast address for the entire IPv4 space.

How do I read a subnet mask in binary?

A valid subnet mask always starts with consecutive 1-bits and ends with consecutive 0-bits - no mixing allowed. The count of 1-bits is the CIDR prefix length. /24 has 24 ones; /16 has 16 ones.

Does this tool support IPv6?

Not yet - IPv6 has 128-bit addresses in eight 16-bit hex groups, which is a different representation. Use the CIDR Calculator for IPv6 subnet work.

Whether you're troubleshooting a routing table or studying for a networking exam, this tool provides the precision you need. Use our CIDR Calculator for complex subnet planning or our IP Lookup tools for geolocation, and bookmark this IP Address Converter for your next network audit.