Wulaoer Tools

Subnet Calculator

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Work out the network address, broadcast, mask and host range from an IPv4 CIDR block, and split it into subnets.

Subnet details
Network address
192.168.1.0
Broadcast address
192.168.1.255
Subnet mask
255.255.255.0
Wildcard mask
0.0.0.255
First usable host
192.168.1.1
Last usable host
192.168.1.254
Total addresses
256
Usable hosts
254
IP class
C
Scope
Private
Split into subnets

Enter a prefix longer than the block's own prefix.

Number of subnets: 4

  • 192.168.1.0/26
  • 192.168.1.64/26
  • 192.168.1.128/26
  • 192.168.1.192/26

Showing 4 of 4 subnets

How to use

  1. 1Type an IPv4 address, optionally with a prefix such as 192.168.1.10/24.
  2. 2Read the network address, broadcast, masks, usable host range and host count.
  3. 3To split the block, enter a longer prefix (for example 26 for a /24) to list the resulting subnets.

Examples

192.168.1.10/24
Network 192.168.1.0, broadcast 192.168.1.255, 254 usable hosts.
Split a /24 into /26
Produces four subnets of 64 addresses each.