IP Subnet Calculator
Professional networking toolkit for subnet calculations, splitting, and analysis
Calculator
Subnet Splitter
Range to CIDR
Subnet Calculator
Enter an IP address and CIDR notation to calculate network details
IP Address
CIDR Notation
/
Calculate Subnet
Common CIDR Blocks
Click to quickly select a CIDR notation
/8
16,777,214 hosts
255.0.0.0
/16
65,534 hosts
255.255.0.0
/24
254 hosts
255.255.255.0
/25
126 hosts
255.255.255.128
/26
62 hosts
255.255.255.192
/27
30 hosts
255.255.255.224
/28
14 hosts
255.255.255.240
/30
2 hosts
255.255.255.252