Subnet Calculator

Calculate mask, IP range, host count by CIDR notation.

Enter IP address with CIDR (e.g. 192.168.1.0/24) or just IP (default /24)

Subnet Calculator

Calculate IP subnet parameters: mask, broadcast address, host range, available address count. An essential tool for network administrators.

Subnet mask in different formats
Network and broadcast addresses
Available IP range
Number of hosts

How to Use

  1. Enter an IP address and subnet mask
  2. Click the network parameter calculation button
  3. Review address range, broadcast address and host count
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