Subnet Calculator

Calculate network information from IP address and CIDR notation. Get subnet mask, network address, broadcast address, and more.

Network Input

Enter an IP address and CIDR notation to calculate subnet information.

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Subnet Information

Subnet: 192.168.1.1/24

192.168.1.0
192.168.1.255
192.168.1.1
192.168.1.254
255.255.255.0
0.0.0.255
256
254
Class C
Private
11111111.11111111.11111111.00000000

Subnet Calculation Info

  • Network Address: IP address AND subnet mask
  • Broadcast Address: Network address with all host bits set to 1
  • Usable Hosts: Total hosts - 2 (excluding network and broadcast)
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