CIDR / Subnet Calculator
Network, broadcast, mask and host range for an IPv4 block.
Inputs
- Address
- Prefix length (/n)
How it is calculated
Mask = 2³² − 2^(32−n); hosts = 2^(32−n) − 2.
Network, broadcast, mask and host range for an IPv4 block.
Mask = 2³² − 2^(32−n); hosts = 2^(32−n) − 2.