IP Subnet Calculator

Your details

Any valid IPv4 address in dotted-decimal notation (e.g. 192.168.1.100 or 10.0.0.1).
The number of bits in the network portion. /24 is the most common LAN size (254 usable hosts).
Network Address
192.168.1.0

The first address in the subnet, identifying the network itself.

Broadcast Address192.168.1.255
Subnet Mask255.255.255.0
Wildcard Mask0.0.0.255
First Usable Host192.168.1.1
Last Usable Host192.168.1.254
Usable Hosts254
Total Addresses256
CIDR Notation192.168.1.0/24
IP ClassC

Subnet 192.168.1.0/24: 254 usable hosts.

  • This address belongs to the RFC 1918 private (Class C) range. The subnet 192.168.1.0/24 spans 256 total addresses.
  • Hosts on this subnet can use addresses from 192.168.1.1 through 192.168.1.254 (254 usable).
  • The network address (192.168.1.0) and broadcast address (192.168.1.255) are reserved and cannot be assigned to devices.
  • Increasing the prefix by 1 (/25) would halve the subnet to 126 usable hosts.

Next stepPrivate addresses are never routed on the public internet. Use NAT if devices on this subnet need internet access.

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