Enter Network Information
Provide an IP address and CIDR notation to calculate subnet details
Example: 192.168.1.0, 10.0.0.0, 172.16.0.0
Subnet mask bits (0-32)
About Subnet Calculation
CIDR (Classless Inter-Domain Routing) notation is a compact method for specifying IP addresses and their routing prefix. The number after the slash (/) represents the number of bits in the network portion of the address.
- /24 = 255.255.255.0 (254 usable hosts)
- /16 = 255.255.0.0 (65,534 usable hosts)
- /8 = 255.0.0.0 (16,777,214 usable hosts)