Enter IP address and CIDR to calculate subnet information.
Enter an IPv4 address and CIDR (subnet mask bits) to calculate network address, broadcast address, usable host range, and other subnet information.
A subnet is a logical subdivision of an IP network. Subnetting allows for efficient use of IP address space, improves network security, and enhances network performance by reducing broadcast domains. CIDR (Classless Inter-Domain Routing) notation is used to specify subnet size.
A subnet calculator is essential for network design, IP address allocation planning, firewall rule configuration, and routing table setup. Network administrators use it to determine the number of available hosts and accurately set network ranges for efficient network configuration.
