SUBNET CALCULATOR

Professional IPv4 Network & CIDR Intelligence Tool

Input Parameters

/

Common Subnets Cheat Sheet

/24 → .0
/25 → .128
/30 → .252

Network Details

Network Address
--
Broadcast Address
--
Usable IP Range
--
Total Hosts
--
Usable Hosts
--
Wildcard Mask
--

Developer Reference

JavaScript
function getNetwork(ip, bits) {
  const mask = (~0 << (32 - bits));
  return ip & mask;
}
Python
import ipaddress
net = ipaddress.IPv4Network(
    '192.168.1.0/24'
)
Bash
# Install ipcalc
ipcalc 192.168.1.0/24