IT · Security · Tech Commentary
Subnet Calculator
v1.0
Enter an IP address and subnet mask or CIDR prefix to analyse the network
Quick presets
Invalid IP address. Please enter a valid IPv4 address (e.g. 192.168.1.0)
Usable Hosts
Total Addresses
CIDR Prefix
IP Class
IP Address
Subnet Mask
Wildcard Mask
Network Address
Broadcast Address
First Usable Host
Last Usable Host
IP Class
Address Type
CIDR Notation
IP in Decimal
IP in Hex
Usable host range
Binary representation — ■ network bits   ■ host bits
IP Address
Subnet Mask
Network Addr