Subnet Calculator

Enter an IPv4 address or CIDR to get the network, broadcast, mask, host range and counts — and split it into smaller subnets.

IP address or CIDR

Accepts 192.168.1.0/24, 192.168.1.0 255.255.255.0, or a bare address.

192.168.1.0/24

254 usable hosts

Private

Network

192.168.1.0

Broadcast

192.168.1.255

Netmask

255.255.255.0

Wildcard

0.0.0.255

First host

192.168.1.1

Last host

192.168.1.254

Total addresses

256

Usable hosts

254

Binary

Address: 11000000.10101000.00000001.00000000
Netmask: 11111111.11111111.11111111.00000000

Split into subnets

Split into