IP Subnet Calculator
Calculate network address, broadcast, subnet mask, host range, and more from an IPv4 address and CIDR prefix
All processing happens in your browser. No data is uploaded.
IP Subnet Calculator
Calculate network address, broadcast, subnet mask, host range, and more from an IPv4 address and CIDR prefix
🔒All processing happens in your browser. No data is uploaded.
IP Address & CIDR
Common Subnets
/8 (255.0.0.0)
/16 (255.255.0.0)
/20 (255.255.240.0)
/22 (255.255.252.0)
/24 (255.255.255.0)
/25 (255.255.255.128)
/26 (255.255.255.192)
/27 (255.255.255.224)
/28 (255.255.255.240)
/30 (255.255.255.252)
/32 (255.255.255.255)
CIDR Notation
192.168.1.0/24Private
Subnet Details
Network Address
192.168.1.011000000.10101000.00000001.00000000Broadcast Address
192.168.1.25511000000.10101000.00000001.11111111Subnet Mask
255.255.255.011111111.11111111.11111111.00000000Wildcard Mask
0.0.0.25500000000.00000000.00000000.11111111First Usable Host
192.168.1.1Last Usable Host
192.168.1.254Total Addresses
256Usable Hosts
254IP Class
Class CAddress Range
192.168.1.0-192.168.1.255