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Network Calculator

Calculate subnet details from an IP address and mask.

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Network Calculator

Legendary CIDR subnet mapping and IPv4 address analysis.

CLASS C NETWORK
192.168.1.0
Network Address
Subnet Mask
255.255.255.0
Broadcast IP
192.168.1.255
Usable Host Range
192.168.1.1 - 192.168.1.254
Total Usable Hosts
254
Wildcard Mask
0.0.0.255
Binary Subnet
11111111...

Network Insight: Subnetting helps organize networks, improve performance through smaller broadcast domains, and enhance security by isolating traffic.

About the Network Calculator

Calculate subnet details from an IP address and mask.

How to use the Network Calculator

  1. Enter the IP Address and the Mask/CIDR, such as 24.
  2. Press Parse Subnet to see the network address, broadcast address, mask and usable hosts.

Formula and method

Usable hosts = 2^(32 − prefix) − 2. The network address is the IP AND the mask.

Worked example

192.168.1.0/24 has the mask 255.255.255.0, a broadcast address of 192.168.1.255 and 254 usable hosts.

Tips

  • Each extra bit in the prefix halves the number of hosts.

Frequently asked questions

What does /24 mean?
The first 24 bits identify the network and the last 8 bits identify hosts.