Calculate IP Subnets Online
Calculate network address, broadcast address, usable IP range, and host count from any IP and CIDR prefix. Essential for network planning, firewall rules, and infrastructure design.
IP Subnet Calculator
Calculate IP subnet details, network ranges, and CIDR notation
192.168.1.0192.168.1.255255.255.255.00.0.0.255192.168.1.0/24192.168.1.1 - 192.168.1.254192.168.1.1192.168.1.254256254C0xC0A8016411000000.10101000.00000001.01100100Split into two /25 subnets
Dividing 192.168.1.0/24 one prefix deeper.
Common Subnet Masks
Quick Start
- 1Enter an IP address with CIDR notation (e.g., 192.168.1.0/24)
- 2View the network address, broadcast, and subnet mask
- 3See the range of usable host addresses
- 4Check the total number of hosts in the subnet
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Looking for FAQs and advanced options? Visit the full IP Subnet Calculator page →