Network / Security

CIDR Calculator

Calculate IP ranges, subnet masks, and network details

CIDR Notation

Network Address

192.168.1.0

Broadcast Address

192.168.1.255

First Usable

192.168.1.1

Last Usable

192.168.1.254

Subnet Mask

255.255.255.0

Wildcard Mask

0.0.0.255

Usable Hosts

254

Total IPs

256

Common Subnets

/8 255.0.0.0 (16,777,214)

/16 255.255.0.0 (65,534)

/24 255.255.255.0 (254)

/25 255.255.255.128 (126)

/26 255.255.255.192 (62)

/27 255.255.255.224 (30)

/28 255.255.255.240 (14)

/32 255.255.255.255 (1)