CIDR Calculator Tool

v1.0

Convert between IP addresses, subnet masks, and CIDR notation with ease.

Convert IP Address & Subnet Mask to CIDR Notation

IP Address

. . .

Subnet Mask

. . .

IP Address with CIDR

. . . /

255.255.255.0

0.0.0.255

192.168.1.0

192.168.1.255

192.168.1.1 - 192.168.1.254

254

11111111.11111111.11111111.00000000

Network Address (CIDR)

. . . /

Number of Subnets

192.168.1.0/24

255.255.255.128 (/25)

Subnet	Network Address	Broadcast	IP Range