IPv4 Subnet Calculator
Calculate network details from IP address and subnet mask
Enter any host IP within the subnet
Dotted decimal format (e.g., 255.255.255.0 = /24)
Subnet Details
Network Address
Broadcast Address
Usable Host Range
Subnets
Hosts/Subnet
CIDR Notation
IP Class
Common CIDR Reference
/24 254/25 126/26 62/27 30/28 14/29 6/30 2/32 1