// Tool_06

Subnet Calculator

Enter an IP address and subnet mask (or CIDR) to calculate the network address, broadcast address, usable host range, and total host count.

Network Address
—
Broadcast Address
—
Subnet Mask
—
Wildcard Mask
—
CIDR Notation
—
Total Hosts
—
Usable Hosts
—
IP Class
—
Usable Host Range
—
IP Address
Subnet Mask
Network
// Common CIDR quick reference — click to use
CIDRSubnet MaskTotal HostsUsable HostsTypical use