Enter an IP address and subnet mask (or CIDR) to calculate network details.
Network Address:
Broadcast Address:
Subnet Mask:
Usable IP Range:
Total Usable Hosts:
A subnet, short for subnetwork, is a smaller network within a larger IP network. Subnets help organize devices and improve routing efficiency.
Whether you're setting up a home network or managing an office setup, this tool quickly gives you the network address, usable host range, and other key info from just an IP and subnet.
CIDR (like /24) is a shorthand for subnet masks (like 255.255.255.0). Both define how IPs are grouped, and this tool supports either format.