Subnet Calculator

Calculate an IPv4 subnet's network, broadcast, netmask, usable host range and host count from CIDR notation.

Network

IP address

You can also type CIDR notation, like 10.0.0.0/16.

Prefix length: /24

192.168.1.0/24

Usable hosts

254

Total addresses

256

Address type

Private (RFC 1918)

Network

192.168.1.0

Broadcast

192.168.1.255

First host

192.168.1.1

Last host

192.168.1.254

Host range

192.168.1.1 – 192.168.1.254

Netmask

255.255.255.0

Wildcard

0.0.0.255

CIDR

192.168.1.0/24

Address

11000000.10101000.00000001.00001010

Netmask

11111111.11111111.11111111.00000000

Network

11000000.10101000.00000001.00000000