IP Subnet Calculator

Calculate IP subnet information and CIDR notation

How to Use

  1. Enter an IP address with subnet in CIDR notation (e.g., 192.168.1.0/24)
  2. Click "Calculate" to see detailed subnet information
  3. The results show network address, broadcast, usable IPs, and more

CIDR (Classless Inter-Domain Routing) notation uses a suffix like /24 to indicate how many bits are used for the network portion of the address.

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