CIDR Calculator
Apps
CIDR Info
Subnet Splitter
Range → CIDR
Supernet
Division Tree
Network Details
IP Address / CIDR
Prefix Length
Calculate
Enter IP with prefix (192.168.1.0/24), or enter IP and prefix separately
Split a Network
Base Network CIDR
Split by
New Prefix
# of Subnets
New Prefix
Subnet Count
Split
IP Range to CIDR Blocks
Start IP
End IP
Convert
Find Common Supernet
Networks (one per line)
Enter one CIDR per line. Finds the smallest supernet containing all networks.
Find Supernet
Interactive Subnet Division
Base Network CIDR
Start
Click
÷2
to split any subnet into two equal halves. Click
Join
to merge siblings back.
Network / CIDR
Subnet Mask
IP Range
Usable Hosts
Total IPs
Actions
CIDR Calculator
Apps
CIDR Calculator
Apps